Top definition
A loser who bullys kids that wont fight back and thinks he's the absolute king of everything he is also a HUGE Keyboard Warrior! with a 9inch
Mathew Cosmo: Wanna fight cunt!?
Small kid: NO!
Big guy: Wanna fight cosmo?
Mathew Cosmo: Leave me alone or i'm telling!
by Loser Theory June 06, 2011
Get the mug
Get a Mathew Cosmo mug for your mate James.