filth vs have a go at it

filth is a noun but have a go at it is not a noun.

Word	Noun	Adjective	Verb	Adverb
filth	Yes	No	No	No
have a go at it	No	No	Yes	No

filth (noun)	have a go at it (noun)
an offensive or indecent word or phrase
a state characterized by foul or disgusting dirt and refuse
anything regarded as making something unclean
any substance considered disgustingly foul or unpleasant

filth (verb)	have a go at it (verb)
	have sexual intercourse with