John: I hate to tell you this, dude, but I used to totally monkey fist her.
Bill: That's disgusting. And kinky.
"Yeah, but his sister hangs out with Monkey Fist, so that's even worse."
Also interchangeable with "Gorilla face"
"Holy shit man; I thought that was someone's pet."
How was your date? Big pussy? No, she had a monkey fist.