Mastrous. 

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.

Mastrous. by Mike-Fetus September 4, 2007

Mastrous 

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!"

Mastrous by FetusxLauncher October 8, 2007

Masterous 

To be the master of masters, or become the best you can be at something.

Dang, his dance moves are so masterous.

Masterous by Halios October 26, 2010

manstrous 

Used to describe a man with a very large penis.

His cock must have been a foot long. He was positively manstrous!

manstrous by tina January 19, 2003

masterous 

like fucking monster , beast , the superior mother fucker , could also refer to looking fresh

"that guy is dress masterous today"
"i am mighty masterous compared to the 13th graders

masterous by masterous giver February 20, 2009