WHAMMY Meaning of WHAMMY in English [wham.my] n, pl whammies [prob. fr. [1]wham] (1940) 1 a: a supernatural power bringing bad luck b: a magic curse or spell 2: a potent force or attack; specif: a paralyzing or lethal blow Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012