Word Study
    punch line
WORDNET DICTIONARY
Noun punch line has 1 sense
- punch line(n = noun.communication) gag line, laugh line, tag line - the point of a joke or humorous story; Array is a part of gag, jape, jest, joke, laugh
is a kind of line
CIDE DICTIONARY
punch line, n. 
                                            -                                     The final sentence, phrase, or word in a joke or humorous story that is unexpected and produces the humorous effect; the point of a joke. [PJC]
-                                     The final sentence, phrase, or word in any narration, speech, or advertisement that produces the speaker's intended effect. [PJC]
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