n. [ 1913 Webster ]

1. One who whacks. [ Colloq. ] [ 1913 Webster ]

2. Anything very large; specif., a great lie; a whopper. [ Colloq. ] Halliwell. [ 1913 Webster ]

v. t. [ imp. & p. p. Whacked p. pr. & vb. n. Whacking. ] [ Cf. Thwack. ] 1. To strike; to beat; to give a heavy or resounding blow to; to thrash; to make with whacks. [ Colloq. ] [ 1913 Webster ]

Rodsmen were whackingtheir way through willow brakes. G. W. Cable. [ 1913 Webster ]

2. To divide into shares; as, to whack the spoils of a robbery; -- often with up. [ Slang ] [ Webster 1913 Suppl. ]

v. i. To strike anything with a smart blow. [ 1913 Webster ]

To whack away, to continue striking heavy blows; as, to whack away at a log. [ Colloq. ] [ 1913 Webster ]

n. 1. A smart resounding blow. [ Colloq. ] [ 1913 Webster ]

2. A portion; share; allowance. [ Slang ] [ Webster 1913 Suppl. ]

3. an attempt; as, to take a whack at it. [ Colloq. ] [ PJC ]

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Out of whack, out of order. [ Slang ] [ Webster 1913 Suppl. ]

a. Very large; whapping. [ Colloq. ] [ 1913 Webster ]

v. t. to sever with a blow; to cut off. [ PJC ]

v. i. to masturbate. [ Vulgar ] [ PJC ]