poke fun vs ridicule

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

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

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

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

poke fun (noun)	ridicule (noun)
	the act of deriding or treating with contempt
	language or behavior intended to mock or humiliate

poke fun (verb)	ridicule (verb)
subject to laughter or ridicule	subject to laughter or ridicule