Quack
noun
A fake doctor.
She was deceived by a quack, who promised to cure her illness.

Often appears as...
- quack doctor
- quack medicine
Usage tips
Disapproving
noun
The sound a duck makes.
The quack of the ducks by the lake was very loud.

Often appears as...
- duck's quack
- quack loudly
verb
To make the sound of a duck.
The ducks are quacking by the pond.

Often appears as...
- quack loudly
- ducks quacking
vi
Giving medical advice without proper qualifications.
It's illegal to quack in many countries.

Often appears as...
- quack about
- quacking remedies
Usage tips
Disapproving
noun
A fake doctor.
She was deceived by a quack, who promised to cure her illness.

Often appears as...
- quack doctor
- quack medicine
Usage tips
Disapproving
noun
The sound a duck makes.
The quack of the ducks by the lake was very loud.

Often appears as...
- duck's quack
- quack loudly
verb
To make the sound of a duck.
The ducks are quacking by the pond.

Often appears as...
- quack loudly
- ducks quacking
vi
Giving medical advice without proper qualifications.
It's illegal to quack in many countries.

Often appears as...
- quack about
- quacking remedies
Usage tips
Disapproving
Definition 1 of 4

Negative Connotation
Used to express strong disapproval of someone pretending to have medical expertise.

Many quacks are exposed on medical TV shows.
Context Sensitive
Use in informal contexts when discussing fraudulent or deceptive medical practices.

He lost his money to a quack.
Avoid Offense
Avoid calling a professional a 'quack' without proof, as it's a serious accusation.

Her methods seemed odd, but she wasn't a quack.
Negative Connotation
Used to express strong disapproval of someone pretending to have medical expertise.

Many quacks are exposed on medical TV shows.
Context Sensitive
Use in informal contexts when discussing fraudulent or deceptive medical practices.

He lost his money to a quack.
Avoid Offense
Avoid calling a professional a 'quack' without proof, as it's a serious accusation.

Her methods seemed odd, but she wasn't a quack.
Negative Connotation
Used to express strong disapproval of someone pretending to have medical expertise.

Many quacks are exposed on medical TV shows.
Context Sensitive
Use in informal contexts when discussing fraudulent or deceptive medical practices.

He lost his money to a quack.
Avoid Offense
Avoid calling a professional a 'quack' without proof, as it's a serious accusation.

Her methods seemed odd, but she wasn't a quack.
Video examples
Jacqueline Novogratz: A...
Third, they are often creating markets. Even if you're bringing clean water for the first time into rural villages, it is something new. And so many low-income people have seen so many failed promises broken and seen so many quacks and sporadic medicines offered to them
Video examples
The danger of science...
not going to take the evidence of my experts on my mammograms or some cancer quack who wants to treat his patient with coffee enemas when you start down the road where belief in magic replace evidence in science you end up in a place you don't want to be you end up in
Video examples
Ruthless Killer Bike...
take to the street in protest and the police move quickly we hit anything that smelled like a biker that looked like a biker like they say it walks like a duck it quacks like a duck it must be a duck well it was the same thing if you wore
Video examples
It Takes a Village PIPE...
with us buddy oh yeah I like to get my hands dirty you know yeah I gotta keep them calloused well I can't say that I think that a lot of the people that are coming to help have their eye on future eggs I always like the ducks quack quack
Video examples
Bona Fide Fact? PIPE Duck...
welcome back to duck quacks don't echo where the three of us compete to present the best facts it's time for my second fax and I don't want to spoil it so just roll the tape please you may be reaching a time in life where you still feel
Video examples
The danger of science...
of my experts on mammograms," or some cancer quack who wants to treat his patient with coffee enemas. When you start down the road where belief and magic replace evidence and science, you end up in a place you don't want to be.
Video examples
Seth Versus Shrimp PIPE...
duck quacks don't echo the show that proves unusual scientific facts in the most hilarious ways we're about to test my fact that shrimp have more endurance
Video examples
Built Cup Tough PIPE Duck...
each wheel you will notice a coffee mug don't go away we'll see if the four mugs can support this truck when duck quacks don't echo return
Video examples
Stoned Raptor Poacher PIPE...
hey do a ma'am quack quack come on out fishing and find arrested step out here step over
Video examples
Buzz Words: The Bee...
the quack as it says is uh sounds like a duck quacking it goes quack quack
Video examples
Jacqueline Novogratz: A...
Third, they are often creating markets. Even if you're bringing clean water for the first time into rural villages, it is something new. And so many low-income people have seen so many failed promises broken and seen so many quacks and sporadic medicines offered to them
Video examples
The danger of science...
not going to take the evidence of my experts on my mammograms or some cancer quack who wants to treat his patient with coffee enemas when you start down the road where belief in magic replace evidence in science you end up in a place you don't want to be you end up in
Video examples
Ruthless Killer Bike...
take to the street in protest and the police move quickly we hit anything that smelled like a biker that looked like a biker like they say it walks like a duck it quacks like a duck it must be a duck well it was the same thing if you wore
Video examples
It Takes a Village PIPE...
with us buddy oh yeah I like to get my hands dirty you know yeah I gotta keep them calloused well I can't say that I think that a lot of the people that are coming to help have their eye on future eggs I always like the ducks quack quack
Video examples
Bona Fide Fact? PIPE Duck...
welcome back to duck quacks don't echo where the three of us compete to present the best facts it's time for my second fax and I don't want to spoil it so just roll the tape please you may be reaching a time in life where you still feel
Video examples
The danger of science...
of my experts on mammograms," or some cancer quack who wants to treat his patient with coffee enemas. When you start down the road where belief and magic replace evidence and science, you end up in a place you don't want to be.
Video examples
Seth Versus Shrimp PIPE...
duck quacks don't echo the show that proves unusual scientific facts in the most hilarious ways we're about to test my fact that shrimp have more endurance
Video examples
Built Cup Tough PIPE Duck...
each wheel you will notice a coffee mug don't go away we'll see if the four mugs can support this truck when duck quacks don't echo return
Video examples
Stoned Raptor Poacher PIPE...
hey do a ma'am quack quack come on out fishing and find arrested step out here step over
Video examples
Buzz Words: The Bee...
the quack as it says is uh sounds like a duck quacking it goes quack quack
Example 1 of 10
Quote examples
John Boyle O'Reilly
Irish Poet
Woman suffrage is an unjust, unreasonable, unspiritual abnormality. It is a hard, undigested, tasteless, devitalized proposition. It is a half-fledged, unmusical, Promethean abomination. It is a quack bolus to reduce masculinity even by the obliteration of femininity.

Quote examples
Elden Henson
American Actor
What's funny is I still, more than anything, get recognized for 'The Mighty Ducks.' I love it. When I was younger, I would get embarrassed. I played sports growing up, and I'd be playing baseball, and the other team would be quacking at me and stuff.

Quote examples
Ben Goldacre
British Writer
There is actually quite a lot of crossover between the quacks and drug companies. They use the same tricks and tactics to bamboozle people into buying their pills, but drug firms can afford to use slightly more sophisticated versions.

Quote examples
Douglas Adams
English Writer
If it looks like a duck, and quacks like a duck, we have at least to consider the possibility that we have a small aquatic bird of the family anatidae on our hands.

Quote examples
Mehmet Oz
Turkish Entertainer
Most allopathic doctors think practitioners of alternative medicine are all quacks. They're not. Often they're sharp people who think differently about disease.

Quote examples
Hunter S. Thompson
American Journalist
Quacks are a part of our culture, and we all fall prey to them. Who among us can say, for sure, that even our own personal physicians are honest and competent?

Quote examples
Sara Blakely
American Businesswoman
The thing about fashion - it's like ducks going quack, quack quack. It's being dictated from above, and it just makes me want to rebel against it.

Quote examples
James Whitcomb Riley
American Poet
When I see a bird that walks like a duck and swims like a duck and quacks like a duck, I call that bird a duck.

Quote examples
Francois Fenelon
French Clergyman
Nothing is more despicable than a professional talker who uses his words as a quack uses his remedies.

Quote examples
Ken Blanchard
American Businessman
Don't quack like a duck, soar like an eagle.

Quote examples
John Boyle O'Reilly
Irish Poet
Woman suffrage is an unjust, unreasonable, unspiritual abnormality. It is a hard, undigested, tasteless, devitalized proposition. It is a half-fledged, unmusical, Promethean abomination. It is a quack bolus to reduce masculinity even by the obliteration of femininity.

Quote examples
Elden Henson
American Actor
What's funny is I still, more than anything, get recognized for 'The Mighty Ducks.' I love it. When I was younger, I would get embarrassed. I played sports growing up, and I'd be playing baseball, and the other team would be quacking at me and stuff.

Quote examples
Ben Goldacre
British Writer
There is actually quite a lot of crossover between the quacks and drug companies. They use the same tricks and tactics to bamboozle people into buying their pills, but drug firms can afford to use slightly more sophisticated versions.

Quote examples
Douglas Adams
English Writer
If it looks like a duck, and quacks like a duck, we have at least to consider the possibility that we have a small aquatic bird of the family anatidae on our hands.

Quote examples
Mehmet Oz
Turkish Entertainer
Most allopathic doctors think practitioners of alternative medicine are all quacks. They're not. Often they're sharp people who think differently about disease.

Quote examples
Hunter S. Thompson
American Journalist
Quacks are a part of our culture, and we all fall prey to them. Who among us can say, for sure, that even our own personal physicians are honest and competent?

Quote examples
Sara Blakely
American Businesswoman
The thing about fashion - it's like ducks going quack, quack quack. It's being dictated from above, and it just makes me want to rebel against it.

Quote examples
James Whitcomb Riley
American Poet
When I see a bird that walks like a duck and swims like a duck and quacks like a duck, I call that bird a duck.

Quote examples
Francois Fenelon
French Clergyman
Nothing is more despicable than a professional talker who uses his words as a quack uses his remedies.

Quote examples
Ken Blanchard
American Businessman
Don't quack like a duck, soar like an eagle.

Example 1 of 10
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