WACK


Meaning of WACK in English

I. ˈwak noun

or whack ˈ(h)wak

( -s )

Etymology: probably back-formation from wacky

slang : a wacky person : crackpot , screwball

II. adjective

Etymology: probably alteration of wacky

slang : lacking in quality : inadequate ; also : corny

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.