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v. whacked, whack·ing, whacks
1. To strike (someone or something) with a sharp blow; slap.
2. Slang To kill deliberately; murder.
To deal a sharp, resounding blow.
1. A sharp, swift blow.
2. The sound made by a sharp, swift blow.
whack off Vulgar SlangIdioms:
have/take a whack at Informal
To try out; attempt.
out of whack Informal
Improperly ordered or balanced; not functioning correctly.
whacked out Slang
3. Under the influence of a mind-altering drug.
(intr, adverb) slang to masturbate