To fuck the belly button of your partner. To insert the penis in the belly-button and have intercourse. Dubbed for its similarity to poking a roast-beef or chicken with a meat-thermometer or poker to see if it is tender.
Hugh Jass: Wow, you have an amazing girlfriend. I'd like to pull a Greasy Meat-Poker on her!
Wifebee Tier: Oh ya, Amerikan man, oh yeah. But only Ie kan.