| Noun | 1. | punch line - the point of a joke or humorous storygag, jape, jest, joke, laugh - a humorous anecdote or remark intended to provoke laughter; "he told a very funny joke"; "he knows a million gags"; "thanks for the laugh"; "he laughed unpleasantly at hisown jest"; "even a schoolboy's jape is supposed to have some ascertainable point" line - text consisting of a row of words written across a page or computer screen; "the letter consisted of three short lines"; "there are six lines in every stanza" | |