\ 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

breakdown, nervous breakdown, tailspin

Synonyms: Verb

acclaim, accredit, applaud, cheer, hail, laud, praise, salute, tout

Antonyms: Verb

knock, pan, slam

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Examples of crack-up in a Sentence


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

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 Go through each other's high school yearbooks and crack up at your mutually regrettable haircut decisions. Gena Kaufman, Glamour, "21 Rainy-Day Date Ideas That Aren't Another Movie," 30 Mar. 2019 The honest moment had her fellow coaches and the show's audience cracking up. Jennifer Aldrich, Country Living, "'The Voice' Coaches Kelly Clarkson and Adam Levine Bonded Over the Grossest Habit," 17 Mar. 2019 Embracing during the London Olympics, recreating Princess Diana’s stunning portrait at the Taj Mahal, cracking up during a running race. Madeleine Luckel, Vogue, "Happy Birthday Kate Middleton! A Look Back at Her Life, and Romance, With Prince William," 9 Jan. 2019 The next round of the streaming revolution may be not be all it was cracked up to be either. Holman W. Jenkins, WSJ, "Hollywood vs. #MeToo and Streaming," 28 Dec. 2018 Tranquility isn't always all it's cracked up to be. Amy Dickinson,, "Child wants to call parents' partners 'mom' and 'dad'," 16 Feb. 2018 Recognizing how idiotic his comments were (not to mention the overwhelming irony), Whoopi started cracking up. Kayla Keegan, Good Housekeeping, "'The View' Stars Whoopi Goldberg and Meghan McCain Lost It on Wednesday's Show," 10 Jan. 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

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Time Traveler for crack-up

The first known use of crack-up was in 1829

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More Definitions for crack-up



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

Rhyming Dictionary: Words that rhyme with crack-up

Thesaurus: All synonyms and antonyms for crack-up

Spanish Central: Translation of crack-up

Nglish: Translation of crack-up for Spanish Speakers

Comments on crack-up

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