when u dig up yur butt and then stretch someone mouth with butty finger

A stinky fishhook is when you stick your finger in your ass then come up behind your girl, stick the dirty finger in her lip and pull like you have caught a fish

When someone picks their nose after a night of cocaine snorting and uses that same finger to fishhook you

The boston fishhook is the opposite of the shocker. Instead of two in the pink and one in the stink, the performer will place two in the stink and one in the pink. It is even more shocking than the shocker.

Amer. slang.

The act in which an individual first puts their index finger into an anus, covering it in fecal matter, then scrapes it along the insides of a victims mouth, causing a jagged wound that will likely become infected

While doing a skank doggy style reach around and stick both your pinkies in the girls mouth and pull back for better penetration. Great for lulls with penile insensititvity.