Simple past tense and past participle of poke fun.
Wiktionary
Poked-fun Sentence Examples
Britney Spears poked fun of the breast implant rumors on an episode of Saturday Night Live.
She was able to parlay this dramatic change into a role on the TV sitcom It's Like, You Know..., where she poked fun at herself and the fact that she looked so different from the earlier film characters she'd portrayed.
It can be unsettling when you suddenly realize that you are joining the age ranks of the seniors at which you may have poked fun.
