A firearm, usually a pistol or open-bolt submachinegun, used for busting "caps" into someone/something's
"punk ass."
"That hater talked mad trash about me, so I pulled out my gat and busted a few hollow tips up in his fat ass"
by Nima April 1, 2004
Slang for a Fire arm. Originally developed by mafiosi in the Prohibition era to refer to their thompson submachine guns, but is now adopted to refer to any gun, and is usually used in the urban areas and in the rap community
Early 1900's - It's the heat, grab me the gat.
Today - Yo ima take ma gat and cap a sucka...
by Cashmoney May 17, 2006
contrary to the popular belief the the word gat comes from the prohibition era, the actuall word "gat" comes from the name of Richard Gatling. Richard gatling, in the mid1 18- late 1800's, designed the original Gatling gun, a 6-10 barreled rotary weapon that used a hand crank to turn the barrels, load a cartridge from a magazine located above the firing mechanism, and fire the gun. this weapon inspired others such as Hiram Maxim to develop the Maxim '08 with the two most common calibers be 7.92mm mauser and .303 enfield. this gun also also inspired the 7.62mm minigun and GAU-8 30mm cannon. since modern machine guns, both multi barreled and single barreled derive their origins in the gatling gun. over the years the word gat has come to mean any self loading semi auto or full auto weapon. (handgun or machine gun.
get your gat, lock and load, we're going to war.
by Fitzy7990 December 25, 2008
Slang for gun. Contrary to (apparently) popular belief, it is not a term created by modern rap stars, but has been in use since the prohibition era.
"scene kids ghetto stars come on grab your gats"

"that night at 82 the parking lot was stacked. grabbed my gat and got my hand stamped by matt."

THANK YOU HOLLYWOOD UNDEAD.<3
by x.emilyyy July 4, 2006
If that thing moves again, I'm gettin' my gat.
by Adam March 15, 2005
Irish slang meaning 'drink', as in alcoholic beverages. Comes from Shelta, the language of the Irish travellers, from 'gaather' meaning 'drink'.

More commonly heard in the South-West.
"Any gat?"
"On the gat tonight?"
"Killin' the gat."
"Up for the gat."
"I think I might have a gat problem."
"Gat-Gluttons Anonymous."
by MalignantHumour November 20, 2009
holy shit she had a gat in her purse.... no one ever raped a .357
by Alpino September 15, 2008