A "Cheese Grater" is someone of incredibly low inteligence. The term Cheese Grater comes from the belief that all inteligent people start with a base I.Q. Like cheese (you start with so much), and these imbeciles come along and shred every precious point from you; simmilarly to how one grates a cheese block.

the art of remembering an arousing occurrence or some porn you watched while masturbating, often handy if you have no porn or your in the shower

When a girl is giving you a blowjob and she uses too much teeth (or any teeth) so you moan a little because of the pain and so she thinks she is doing a good job and keeps going! But you don't want here to stop, so you let her keep going and keep moaning and the vicious cycle continues!

The name for a female who has braces and upon performing fellatio shreds her mans mozzarella stick.

A Mac Pro or Power Mac G5, so-called because the front of the computer has holes and a handle that make it look like a cheese grater.

The act of dragging your sack across a person's face. This is done after shaving the male genitalia, then letting some stubble grow in and not washing for a few days to let some cheese (definitions 9 and 22) build up.

A method of masturbation involving the vigorous grating of ones tip with ones knucles