A masturbation method in which a female will wrap their hand in metal foil and proceed to fist themselves until orgasm.
My girl said she tried the iron fist yesterday, she's been bleeding since
The act of stroking one's penis with such vigorous strength and aggression that it causes one's knuckles to turn white.
Bro, it's been so long since my girl let me hit that I had to give myself the ol' white knuckle monkey fist.
The act of firsting someone with your feet
Feet fisting has to hurt because it's so far up the ass
To put your hand in a fist and punch someone (or something) so hard it ends up looking like a biscuit
To punch something so hard that your hand feels like a biscuit afterwards
If she says one more thing about me, I'll biscuit fist her so hard.
I got mad once and biscuit fisted my wall.... there's a major hole in it now.
After I biscuit fisted John, his face was so messed up he had to go to the hospital.
A biscuit fist is when you take your fist like a club and punch the temple area of someones head.
Joe biscuit fisted Steve after they got into a fight.
Shark fisting is the act of placing your two fists together and sticking your thumbs up in the air while you fist your significant other. (Best effects achieved while other is on period.)
Betty; I heard shark fisting can feel really good.
John; I can shark fist ya right now baby.
The insertion of the fist into a man's urethra
It is my boyfriend's birthday, so I'm giving him a French Fist tonight