Fat Bitch (gun) 

A gun thats concealed in the folds of fat in an obese woman. This definition can only apply to one thats obese enough to use their fat to physically conceal the gun

The police arrested an overweight female gangbanger for assault. Upon checking her with a metal detector, further searching revealed she was hiding a fat bitch under the fat rolls of her stomach. She now faces additional handgun charges.

A fat lady robbed the gas station on 1st street. She didnt seem suspicious at first but she reached under her arm and pulled out a fat bitch (gun) and pointed it at the clerk and demanded money.

Fat Bitch (gun) by Pyro316 November 14, 2012

gun hei fat choy 

means Happy Chinese New Year in chinese

Kid:Gun hei fat choy!!$.$
Parent: Oo, hes some money.

gun hei fat choy by TypicalAzn February 9, 2010

fatgun 

A variant of the slang word "shotgun" (a situation in a group of people where one person declares that they will ride in the passenger seat while the other 3 squeeze in the back seats of the car.)

When you are fat, preferably obese, you basically get shotgun. It would be really difficult to squeeze 2 more people in the back of a small car alongside a really fat person.

"fatgun!"
"huh?"
"i'm the biggest guy among us so i'll sit in the front to save the rest of you guys space"
"oh, okay, that makes sense"

fatgun by jakk765 June 21, 2014