poke fun vs debunk

poke fun and debunk both are verbs.

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

As verbs, debunk is a hyponym of poke fun; that is, debunk is a word with a more specific, narrower meaning than poke fun:

poke fun: subject to laughter or ridicule
debunk: expose while ridiculing; especially of pretentious or false claims and ideas

Other hyponyms of poke fun include tease, lampoon, satirise, satirize, expose, stultify.

poke fun (verb)	debunk (verb)
subject to laughter or ridicule	expose while ridiculing; especially of pretentious or false claims and ideas