\ ˈkrak-ˌəp How to pronounce crack-up (audio) \

Definition of crack-up

 (Entry 1 of 2)

1 : crash, wreck an automobile crack-up
2a : a mental collapse : nervous breakdown his wife's death brought on his crack-up

crack up

cracked up; cracking up; cracks up

Definition of crack up (Entry 2 of 2)

transitive verb

1 : praise, tout sense 1 wasn't all that it was cracked up to be
2 : to damage or destroy (a vehicle) by crashing crack up a car
3 : to cause to laugh out loud that joke really cracks him up

intransitive verb

1 : to damage or destroy a vehicle (as by losing control) cracked up on a curve
2 : to laugh out loud

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Synonyms & Antonyms for crack-up

Synonyms: Noun

Synonyms: Verb

Antonyms: Verb

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Examples of crack-up in a Sentence

Verb that sports car isn't all it's cracked up to be the movie is being cracked up as the blockbuster of the summer
Recent Examples on the Web: Verb But the running game wasn't anything near what it was cracked up to be in coordinator Darrell Bevell's debut as play caller. Dave Birkett, Detroit Free Press, "Detroit Lions stock watch: T.J. Hockenson shines, run game sputters," 9 Sep. 2019 This frog’s croak sounded a lot like someone breaking wind, causing her to crack up. Alice Rudge, Quartz, "Why we laugh when we know we shouldn’t," 28 Aug. 2019 Every time one of them does this, the other guy cracks up. Neil Swidey,, "We’re afraid of sharks. But maybe we’re not afraid enough.," 9 July 2019 And both of us would crack up, just laugh our asses off. Mary Gaitskill, The New Yorker, "This Is Pleasure," 8 July 2019 Is Amazon Prime Day actually all it's cracked up to be? Rebekah Lowin, Country Living, "Amazon Prime Day 2019: Everything You Need to Know, Plus the Best Pre-Prime Deals," 28 June 2019 For example, when a llama spit on their car at Safari Park, their mom was probably not as amused as the Tanley kids, who cracked up over the episode — a moment caught on their brooch-size trackers. Andrea Sachs, Washington Post, "Tennessee tourism department enlists kids to rate the state’s attractions," 26 June 2019 The lasting memory everyone took home was the picture of Karl cracking up, laughing and laughing at himself. Sarah Mower, Vogue, "Karl For Ever: In Paris, the Fashion Industry Pays Tribute to Karl Lagerfeld," 21 June 2019 The Hollywood Reporter said Grant cracked up the rest of the roundtable, which also included Richard Madden, Billy Porter, Stephan James, Diego Luna and Sam Rockwell. Cicero Estrella, The Mercury News, "Hugh Grant calls himself ‘vile’ and unworthy of his rom-com roles," 6 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'crack-up.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of crack-up


circa 1926, in the meaning defined at sense 1


1829, in the meaning defined at transitive sense 1

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Statistics for crack-up

Time Traveler for crack-up

The first known use of crack-up was in 1829

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More Definitions for crack-up


How to pronounce crack up (audio)

English Language Learners Definition of crack-up

US, informal
: an accident in which a vehicle is badly damaged


\ ˈkrak-ˌəp\

Kids Definition of crack-up

2 : crash entry 2 sense 3, wreck My car received minor damage in the crack-up.

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More from Merriam-Webster on crack-up

Thesaurus: All synonyms and antonyms for crack-up

Rhyming Dictionary: Words that rhyme with crack-up

Spanish Central: Translation of crack-up

Nglish: Translation of crack-up for Spanish Speakers

Comments on crack-up

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a calculated move

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