Whacking
['wækɪŋ]
Definition
(adj.) (British informal) enormous; 'a whacking phone bill'; 'a whacking lie' .
(adv.) extremely; 'a whacking good story'.
Editor: Nettie--From WordNet
Definition
(p. pr. & vb. n.) of Whack
(a.) Very large; whapping.
Editor: Matt