Definitions by Joe Fucking Sixpack

Monsees 

n. pl. 1. Semen stain schrapnel that is most clearly seen or visible (usually glowing) under black-light conditions. 2. Masturbatory evidence identified by a textural diference with the underlying existing surface typically found on or around one's personal computer.

Dude, you're such a perv...you got Monsees all over my mousepad!

Monsees by Joe Fucking Sixpack October 7, 2005