The act of inserting a man or woman's finger (preferably their smallest one) or toe inside a man's peehole, or the hole that is found at the tip of a man's penis. This is often described as both painful and pleasurable, and has been known to severely disfigures the man's penis.
John: Aw, man my penis hurts. She game me an Italian Fingerjob and I'm a bit sore.
When a guyname "Jets" makes Niles think there's actually something called a 5 finger pitch
"Hey Niles do you know what a 5 finger pitch is?" "No Jets I don't?" "Oh that sucks" "I'll go search it on Urban Dictionary" "Ok" "Fuck you, There is no 5 finger pitch" "YOU ACTUALLY SEARCHED IT THOUGH!"