A can of worms

usgb
noun

A situation that, once started, is likely to get out of control or cause many other problems.

Investigating this matter could open up a can of worms about other controversial issues.
Visual representation of "a can of worms" - A situation that, once started, is likely to get out of control or cause many other problems.

Often appears as...

  • open a can of worms
  • unleash a can of worms

Usage tips

Idiomatic

Definition 1 of 1
Visual representation of "a can of worms"
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Figurative Meaning

The phrase is used to describe a complex problem, not an actual container of worms.

Illustration for Figurative Meaning
I didn't mean to open a can of worms with that question.
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Negative Connotation

It typically implies the emergence of many unforeseen problems.

Illustration for Negative Connotation
Discussing politics at dinner often opens a can of worms.
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Use with Caution

Be mindful when using it, as it can imply reluctance to face the issues.

Illustration for Use with Caution
He avoided the topic so as not to open a can of worms.
Visual representation of the word "A can of worms"

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