Usually after looking away from the urinal, pee leaks onto or in the hand holding or supporting the male reproductive organ, thus creating a fist full of piss.
"Todd didn't wash his hands even though he had the biggest piss fist i ever saw!"
6π 2π
When a person has a boner that looks like and or feels like a erection that is strong and or going to burst. One could even use said erection to poke many things.
Jim: Hey man how did you and sarah work out last night.
Bob:dude I got a "Rocket Fist" and she saw. She couldn't stop looking.
6π 2π
In nasty talking, hole fisting refers to a commonly used female pleasuring technique.
Damn right, you gotta big ass hole that needs some real hole fisting.
9π 4π
Fisting someone with your thumb up.
Brian: Bruh, I got so pissed at this guy I seriously considered turkey fisting this mofo
When you punch someone and their teeth get stuck in your fist.
"Sam hit that dude so hard he had a fist grin."
In a 69 styled position, when you punch your girl in the asshole as she is climaxing, and you get a bunch off poo on your fist.
Man I was hoping she wouldn't climax yet, so I pulled out the ole poopy fist on her , little did I know she had a large chilli and enchilada lunch.