View synonyms for

crack up

verb

(intr) to break into pieces
informal��(intr) to undergo a physical or mental breakdown
informal��(tr) to present or report, esp in glowing terms
it's not all it's cracked up to be
informal��to laugh or cause to laugh uproariously or uncontrollably

noun

informal��a physical or mental breakdown

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Idioms and Phrases

Suffer an emotional breakdown, become insane, as in He might crack up under the strain . This usage alludes to the result of cracking one's skull; from the early 1600s to crack alone was used in this way. [ Slang ; early 1900s]

Damage or wreck a vehicle or vessel. For example, I'm always afraid that I'll crack up the car .

Experience a crash, as in We cracked up on the freeway in the middle of the ice storm .

Also, crack someone up . Burst or cause to burst out laughing, as in The audience cracked up , or That joke really cracked me up . [ Slang ; c. 1940] Also see break up , def. 6. All of these expressions derive from crack in the sense of “break into pieces” or “collapse,” a usage dating from the late 1600s. Also see cracked up .

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Example Sentences

Examples have not been reviewed.

When he saw the result in the mirror, he cracked up: “Oh my God, I’m Geppetto. I look just like the Disney version.”

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"I just cracked up laughing of course, because that's what any woman would want to hear, but it's our life, so it's pretty wonderful. He was a man of his word."

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Best joke of the sketch: the hosts cracking up with laughter at the thought of paying back student loans.

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I cracked up, and it felt like sobbing.

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As for whether AI is actually all it’s cracked up to be, according to its promoters — that reckoning is still to come.

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Related Words

freak out��
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