1. Hit hard
   "The teacher whacked the boy"
   - wham, whop, wallop

1. The sound made by a sharp swift blow 
2. The act of hitting vigorously
   "he gave the table a whack"
   - knock, belt, rap, whang

Sounds like: wack

Derived forms: whacks, whacked, whacking

See also: whacking

Type of: blow, hit, sound

Encyclopedia: Whack

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