To whack away

to continue striking heavy blows; as, to whack away at a log.

See also: Whack

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
At Sandpines Golf Links in Florence, 90 golfers showed up Tuesday to whack away, general manager Bob Rannow said, which is at least as good as last year and maybe a small increase.
11 seeding had been some sort of mirage, Michigan tried to whack away at a 32-22 deficit that struck it early in the second half.