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.

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.

a bitch wit braces that gives head and cuts yo penis

Depending of hetero or homo sexual, having the sex partner suck your dick while gently sliding his or her teeth up and down your cock.

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.