WHACKING
Meaning of WHACKING in English
I. ˈhwa-kiŋ, ˈwa- adjective
Date: 1806
: very large : whopping
II. adverb
Date: 1853
: very
a whacking good story
Merriam-Webster's Collegiate English vocabulary.
Энциклопедический словарь английского языка Merriam Webster.
2003