The M3 Submachine gun. A cheap .45 caliber gun designed in WWII to replace the Thompson submachine gun. Since then, it has been used by the US all the way up to Desert Storm.
by Jacob Stevens January 9, 2009
Get the Grease gunmug. A class of firearm that is intented for fully automatic firing and chambers pistol ammunitions. In some sense it is basically a pistol with full auto capability.
It is generally used in close combat where accuracy is less important than rate of fire. The usage of pistol ammunitions means lower recoil than conventional rifles, thus enabling it to be fired at high rate, but it also means it has less stopping power and a shorter effective range.
(note: civilian SMGs are often converted that so they are only capable of semi-auto fire.)
Do not confuse it with assault rifle. An assault rifle is technically a cross between a conventional rifle and a SMG.
It is generally used in close combat where accuracy is less important than rate of fire. The usage of pistol ammunitions means lower recoil than conventional rifles, thus enabling it to be fired at high rate, but it also means it has less stopping power and a shorter effective range.
(note: civilian SMGs are often converted that so they are only capable of semi-auto fire.)
Do not confuse it with assault rifle. An assault rifle is technically a cross between a conventional rifle and a SMG.
HK MP5 is a German SMG.
Uzi is commonly portrayed in movies.
The M1 Thompson, or "Tommy gun" is a submachine gun used during the Second World War.
Uzi is commonly portrayed in movies.
The M1 Thompson, or "Tommy gun" is a submachine gun used during the Second World War.
by Kickyourmom October 20, 2005
Get the submachine gunmug. 
The act of turning your forsekin inside out and twisting your penis several times to then unleash it spraying smegma in a swift-like fashion. This is usually done in the center of a group of people at a party or classroom.
Guy 1: "Hey! Did you see what I did at the party last night?"
Guy 2: "No, what did you do?"
Guy 1: "I managed to pull off the most epic smegmachine gun of all time!"
Guy 2: "Dude, no way!"
Guy 1: "Yeah! I even managed to hit my Grandpa who was fast asleep on the couch!"
Guy 2: "No, what did you do?"
Guy 1: "I managed to pull off the most epic smegmachine gun of all time!"
Guy 2: "Dude, no way!"
Guy 1: "Yeah! I even managed to hit my Grandpa who was fast asleep on the couch!"
by Grandpa Bob January 16, 2014
Get the Smegmachine Gunmug. If not the most popular song from Green Day's new album, 21st Century Breakdown, one of them. Was a featured track in Transformers: Revenge of the Fallen.
Other references: 21 gun salute.
Other references: 21 gun salute.
by worrrddd August 2, 2009
Get the 21 gunsmug. to shoot a firearm.
Made famous by Brooklyn rhyme collective Orignal Gun Clappaz (OGC) who were affiliated with Blackmoon (Buckshot, Five Foot Accelerator, DJ Evil Dee) and the Boot Camp Clique (Smith and Wesson, Blackmoon, OGC, Heltah Skeltah)
Made famous by Brooklyn rhyme collective Orignal Gun Clappaz (OGC) who were affiliated with Blackmoon (Buckshot, Five Foot Accelerator, DJ Evil Dee) and the Boot Camp Clique (Smith and Wesson, Blackmoon, OGC, Heltah Skeltah)
If you disrespect me again, I'm about to get to gun clapping up in here.
"Bucktown...home of the original gun clappas" - Bucktown - Smith and Wesson
"Bucktown...home of the original gun clappas" - Bucktown - Smith and Wesson
by Starange April 7, 2006
Get the gun clappingmug. A redneck type of bar, most commonly found in Texas, in which everyone who’s drinking there is concealing a firearm.
If things get too boring here, let’s head out to a gun bar and have ourselves a little gunfight later on.
by Dr Bunnygirl November 19, 2019
Get the gun barmug.