whacking vs beating

whacking and beating both are nouns.

Word	Noun	Adjective	Verb	Adverb
whacking	Yes	Yes	No	Yes
beating	Yes	No	No	No

As nouns, whacking and beating are synonyms defined as:

whacking and beating: the act of inflicting corporal punishment with repeated blows

Other synonyms of whacking include drubbing, lacing, licking, thrashing, trouncing.

whacking (noun)	beating (noun)
the act of inflicting corporal punishment with repeated blows	the act of inflicting corporal punishment with repeated blows
	the act of overcoming or outdoing

whacking (adjective)	beating (adjective)
(British informal) enormous

whacking (adverb)	beating (adverb)
to an abnormal extent