poke fun vs guy

poke fun is not a noun while guy is a noun.

Word	Noun	Adjective	Verb	Adverb
poke fun	No	No	Yes	No
guy	Yes	No	Yes	No

As verbs, poke fun and guy are synonyms defined as:

Other synonyms of poke fun include blackguard, jest at, laugh at, make fun, rib, ridicule, roast.

poke fun (noun)	guy (noun)
	a cable, wire, or rope that is used to brace something (especially a tent)
	an informal term for a youth or man

poke fun (verb)	guy (verb)
subject to laughter or ridicule	steady or support with a guy wire or cable
	subject to laughter or ridicule