vernacular vs slam-bang

vernacular is a noun but slam-bang is not a noun.

Word	Noun	Adjective	Verb	Adverb
vernacular	Yes	Yes	No	No
slam-bang	No	Yes	No	Yes

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

vernacular (adjective)	slam-bang (adjective)
being or characteristic of or appropriate to everyday language	violent and sudden and noisy

vernacular (adverb)	slam-bang (adverb)
	in a violent or sudden or noisy manner
	with heedless speed
	in a careless or reckless manner