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English word:    
crack   up  

crack up

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crack up in WordNet English dictionary

verb
  1. laugh unrestrainedly
    break up  crack up 
  2. suffer a nervous breakdown
    crack up  crack  crock up  break up  collapse 
  3. rhapsodize about
    crack up 
WordNet Lexical Database v3.0, © 2006 Princeton University


crack up in English Wiktionary

 
  1. (verb) (idiom/intransitive) To laugh heartily.
  2. (verb) (idiom/transitive) To cause to laugh heartily
  3. (verb) (intransitive/idiom) To become insane; to suffer a mental breakdown.
  4. (verb) (rfv-sense) (idiomatic) To lose clarity in a long-distance conversation due to bad reception.
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