WHACK

Whack (?), v. t. [imp. & p. p. Whacked (?); p. pr. & vb. n. Whacking.] [[Cf. Thwack.]] To strike; to beat; to give a heavy or resounding blow to; to thrash; to make with whacks. Rodsmen were whackingtheir way through willow brakes. G. W. Cable.