To rule with an ironfist is to harshly punish anyone or thing that bends the law at all. There are no technicalities, and there are no mercies granted.
The act of taking ones hand and clenching it into a tight fist with the properties of iron at which point it is then thrusted into the rectum of a unsuspecting target, causing irepairable anal damage and an odd, humiliating sexual pleasure.
"My bitch likes it hot, Iron Fist style."
"...dude your fucked up."
"You ready to be fisted?"
"Yes but no lube."
"...kinky."
The act of fisting a female while she is having her period. The "Iron" is derived from the iron that is in the blood of the female which is now on the hand of the male.
Jeb attempted to fistDebbie but was cut short because he realized that he did not want to Iron Fist her.