The essence of cool.

Also, see pwnage.
I'm so Mastrous.

You're total Mastrous.

I'm cooler than Mastro.

I <3 Mastro-ness.

People who are Mastro are sexy.
by Mike-Fetus August 27, 2007
Get the Mastrous. mug.
The Spartan word for Epic/Amazing.

Can be abbreviated: Mastro, Mastrousness, etc.
"That game is Mastro"

"OMFG IM SO MASTROUS!"

"This movie is full of MASTROUSNESS!"
by FetusxLauncher September 25, 2007
Get the Mastrous mug.