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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
Related Words

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

Mastrovski

Also means "Master" in Czech. A girl who you don't mess with if you value your life.
You don't fuck with Mastrovski.
Mastrovski by Seacher April 18, 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

maströrstest

An action by smashing a mast pipe at a object to see if it stands the test.
Wow, I have heard that this new smartphone has a shatterproof display!
- Well, I trust you after a maströrstest
maströrstest by g1214 October 5, 2017