blind drunk vs vernacular

blind drunk is not a noun while vernacular is a noun.

Word	Noun	Adjective	Verb	Adverb
blind drunk	No	Yes	No	No
vernacular	Yes	Yes	No	No

blind drunk (noun)	vernacular (noun)
	the everyday speech of the people (as distinguished from literary language)
	a characteristic language of a particular group (as among thieves)

blind drunk (adjective)	vernacular (adjective)
very drunk	being or characteristic of or appropriate to everyday language