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to suddenly laugh a lot, or to make someone suddenly laugh a lot: I took one look at her and cracked up. There's something about that guy's face that just cracks me up. Thesaurus: synonyms, antonyms, and examples. to laugh. laugh The children were laughing at the cartoons.
1. phrasal verb. If someone cracks up, they are under such a lot of emotional strain that they become mentally ill. [informal] She would have cracked up if she hadn't allowed herself some fun. [VERB PARTICLE] 2. phrasal verb. If you crack up or if someone or something cracks you up, you laugh a lot. [informal]
Definition of crack up phrasal verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
noun. ˈkrak-ˌəp. Synonyms of crack-up. 1. : crash, wreck. an automobile crack-up. 2. a. : a mental collapse : nervous breakdown. his wife's death brought on his crack-up. b. : collapse, breakdown. crack up. 2 of 2. verb. cracked up; cracking up; cracks up. transitive verb. 1. : praise, tout sense 1. wasn't all that it was cracked up to be. 2.
CRACK (SB) UP definition: to suddenly laugh a lot, or to make someone suddenly laugh a lot: . Learn more.
crack up meaning, definition, what is crack up: to laugh a lot at something, or to make ...: Learn more.
Crack up definition: a crash; collision.. See examples of CRACK UP used in a sentence.
