[n] the act of inflicting corporal punishment with repeated blows [adv] extremely; "a whacking good story" [adj] (British informal) enormous; "a whacking phone bill"; "a whacking lie"
beating, big, drubbing, lacing, large, thrashing, trouncing
corporal punishment, flagellation, flogging, lashing, tanning, whipping
\Whack"ing\, a. Very large; whapping. [Colloq.]