zonk /zɔːŋk/noun 3verb 3forms 3phrases 1 noun3 •(slang) An unfavorable card or token, or undesirable or worthless item used as a prize in a contest or game show (such as Let's Make a Deal).There will always be two doors that hold zonks, so regardless of whether you initially chose the grand prize or a zonk, Monty will always be able to show you a zonk not chosen. — 2003 •(slang) A cigarette hand-rolled from tobacco and cannabis. •(slang) The feeling of a drug taking hold. verb3 •(slang) To make (someone) sleepy or delirious, to put into a stupor. •(slang) To become exhausted, sleepy, or delirious.After two hours of studying, I zonked out. •(slang) To hit hard. formszonked · zonking · zonks Phrases with zonk zonk outTo fall suddenly into a very deep sleep.