beating vs whacking

beating and whacking both are nouns.

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

As nouns, beating and whacking are synonyms defined as:

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

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

beating (noun)	whacking (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

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

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