cock sucking vs vernacular

cock sucking and vernacular both are nouns.

Word	Noun	Adjective	Verb	Adverb
cock sucking	Yes	No	No	No
vernacular	Yes	Yes	No	No

cock sucking (noun)	vernacular (noun)
slang for fellatio	the everyday speech of the people (as distinguished from literary language)
	a characteristic language of a particular group (as among thieves)

cock sucking (adjective)	vernacular (adjective)
	being or characteristic of or appropriate to everyday language