Be off your rocker

usgb
phrase

To be crazy or insane.

If you think you can drive 100 miles in an hour, you must be off your rocker!
Visual representation of "be off your rocker" - To be crazy or insane

Often appears as...

  • must be off your rocker
  • is off his/her rocker

Usage tips

Informal

Idiomatic

Definition 1 of 1
Visual representation of "be off your rocker"
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Slangy Expression

Considered informal and often used in casual conversations among friends, rather than in formal settings.

Illustration for Slangy Expression
At the family dinner, Aunt May said I was off my rocker for wanting to dye my hair green.
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Hyperbole

It's an exaggeration used for effect, not to be taken literally as accusing someone of actual insanity.

Illustration for Hyperbole
When Joe bought another vintage car, his wife exclaimed, 'You're off your rocker!'
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Humorous Tone

Often used jokingly among friends to tease or mock someone's unusual idea or behavior in a light-hearted way.

Illustration for Humorous Tone
He's off his rocker, wearing shorts in the snow, but he loves it!
Visual representation of the word "Be off your rocker"

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