go bad vs conk

go bad is not a noun while conk is a noun.

Word	Noun	Adjective	Verb	Adverb
go bad	No	No	Yes	No
conk	Yes	No	Yes	No

go bad (noun)	conk (noun)
	informal term for the nose

go bad (verb)	conk (verb)
become unfit for consumption or use	pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain
stop operating or functioning	pass from physical life and lose all bodily attributes and functions necessary to sustain life
	hit, especially on the head
	come to a stop