snog vs buss

snog is not a noun while buss is a noun.

Word	Noun	Adjective	Verb	Adverb
snog	No	No	Yes	No
buss	Yes	No	Yes	No

As verbs, snog and buss are synonyms defined as:

snog and buss: touch with the lips or press the lips (against someone's mouth or other body part) as an expression of love, greeting, etc.

Other synonyms of snog include kiss, osculate.

snog (noun)	buss (noun)
	the act of caressing with the lips (or an instance thereof)

snog (verb)	buss (verb)
touch with the lips or press the lips (against someone's mouth or other body part) as an expression of love, greeting, etc.	touch with the lips or press the lips (against someone's mouth or other body part) as an expression of love, greeting, etc.