Gun bum 

A gun bum is a gunman who lives a poor, rootless lifestyle.

The Gun bum life is often portrayed in westerns and mercenary films.

Gun bum by I, Wreckerrr October 13, 2016

Gunbuster 

A 1989 OVA about girls with big boobs who pilot a 200 meter tall super robot to save the human race from evil Space Monsters (Uchu Kaiju) that want to "purify" the universe by wiping out humanity. The series makes use of realistic physics when it comes to the use of relativistic speeds, and features what is probably the second most destructive giant robot in an anime (after the Ideon).

Gunbuster is one of the awesomest anime ever!

Gunbuster by Warui Otoko July 22, 2010

gunhumper 

A hard-core gun enthusiast that always brings up the second ammendment to defend guns during mass gun killings. These people live, breathe, sleep with and hump their guns because they love them so much. The bigger the gun, the smaller the penis they have.

The ultra right wing of the Republicans and Tea Party crowd are the biggest gunhumpers of them all.

gunhumper by Bear-Bear August 15, 2012

gunbull 

must be somebody working in the prison system (in Texas?)

Used by James Lee Burke in his novels with Billy Bob Holland as protagonist

gunbull by jochen stremmel March 31, 2004

Gundumani

Gundumani are very rare species who love to eat a lot. They are very loyal and friendly in nature. Most of the Gundumani's are lawyers by nature. They are extremely talented also as they can sing, dance and draw. But they tend to be also very shy.Gundumani's also like chickens very much.
Don't make the mistake of getting into debates with them because they can slam dunk you and win hands down.

Most importantly if u ever find a Gundamani don't ever let them go because they are the pearls u will find once in a lifetime

Where's my Gundamani?
"Gundumani must be near the refrigerator eating parippuvada"

Gundumani by BenJ007 November 23, 2021

Gumbumpin 

Getting a blowjob from someone without teeth.

That granny Smith over yonder sure good at gumbumpin.

Gumbumpin by Maddog936 August 8, 2018

gumbum

A person who is constantly asking others for a piece of gum.

Caron is such a gumbum! Everyday after lunch I hear her asking everyone around the office if they have any gum. She needs to get her own pack!

gumbum by stally September 9, 2010