Kevin Hart -- I'LL WHIP OUT MY PENIS ... If I Dominate NBA Celeb Game

Kevin Hart Fun Fact: He refers to his penis as a "weapon."

Kevin Hart Funner Fact: He guarantees that if he three-peats as MVP of the NBA Celebrity Game at All-Star weekend, he's gonna pull out said "weapon" and walk off the court NAKED.

The "Ride Along" star made the promise on tonight's episode of Jim Rome on Showtime ... warning, "I suggest you get your blur signs ready 'cause I'm gonna let it all hang out."

Hart's got some serious competition this year ... like Secretary of Education Arne Duncan, Victoria's Secret model Erin Heatherton and his arch rival from last year, Nick Cannon.