whack

(adjective): Egregious.
(adjective): Bad (not good), inauthentic, of an inferior quality, contemptible, lacking integrity, lame, or strange.
(adjective): Crazy, mad, insane.
(adjective): Cool, bizarre, and potentially scary.
(noun): The sound of a heavy strike.
(noun): The strike itself.
(noun): The stroke itself, regardless of its successful impact.
(noun): An attempt, a chance, a turn, a go, originally an attempt to beat someone or something.
(noun): (originally Britain cant) A share, a portion, especially a full share or large portion.
(noun): A whack-up: a division of an amount into separate whacks, a divvying up.
(noun): A deal, an agreement.
(noun): The backslash, ⟨ \ ⟩.
(verb): To hit, slap or strike.
(verb): To kill, bump off.
(verb): To share or parcel out; often with up.
(verb): To beat convincingly; to thrash.
(verb): (usually in the negative) To surpass; to better.