slam-bang vs patois

slam-bang is not a noun while patois is a noun.

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

slam-bang (noun)	patois (noun)
	a regional dialect of a language (especially French); usually considered substandard
	a characteristic language of a particular group (as among thieves)

slam-bang (adjective)	patois (adjective)
violent and sudden and noisy

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