jim·jams \ˈjimˌjamz, -ˌjaa(ə)mz\noun plural Etymology: perhaps alteration of delirium tremens slang: delirium tremens; also: a markedly nervous, overwrought, or depressed condition especially arising from excess or fear < drink so much coffee I get the jimjams — New Yorker > < attack the January jimjams with love and laughter — Mademoiselle >