1 definition by Aidan Nulman
To forcibly insert one's fist into a woman's vagina or person's asshole with the intent of utterly taking over and causing damage to the respective region's walls and/or lining.
That limp Billy's walking with isn't from sodomy! Didn't you hear that Frank was iron fisting him last night? Iron fisting him right up the butt.
by Aidan Nulman February 20, 2007