GISmaster 

Someone who is familiar with a Geographical Information System. However, these people are often mistaken for a jizzmaster.

Smitty is a GISmaster.

GISmaster by Bruce Smith December 10, 2008

gasasstic flatulence 

A fart that is so explosive and smelly that it literally shakes the foundation of a building.

“Man, Joe just blew gasasstic flatulence so power and loud that the entire floor moved. No air freshener could remove the stench.”

gasasstic flatulence by joseph blough March 25, 2022

gasman 

A man who is going out with a lady who is considerably older than he is. So called because he can often be found servicing an old boiler.

That Ashton Kutcher he's a total gasman.

gasman by Iain1977 March 31, 2007

Gasmaster 

The undisputed ultra-king of flatulence.

You do not want to get on the wrong side of the Gasmaster.

Gasmaster by Dr Bunnygirl February 27, 2019

Gasasster

When you eat a pie of pizza or something like that and hot fucking fury shoots out of your ass cheeks

Kogan that chocolate fountain and pizza is a recipe for a gasasster

Gasasster by Naor the man December 27, 2019

Gaymaster 

A master of all gays. All gaylords report to a gaymaster.

You are becoming aware of yourself as a gaymaster.

Gaymaster by kam75xx December 31, 2018

Gassassin 

A person who knocks another over using nothing but flatulence.

Person #1: Man, that was brutal. I fell out of my chair.
Person # 2: Yeah, he's a Gassassin.

Gassassin by pilotgeg February 16, 2010