Named after the Thompson sub-machine gun, it's a slang term used to describe someone masturbating until the ejaculation of blood. Can be used as a noun or verb.
1.In sixth grade, Mr. Young convinced Tom to pull a tommy gun.
2.The next day, Tom couldn't skate because he was too busy tommy gunning.
Thompson .45 calibre Sub-machine gun.30 or 50 rounds in a magazine. Mostly used in the 30's to da 50's.
Used by gangstas in the US in 30's
Used by the army during world war 2
Used by various countries in the 50's
Also known as Tommy-gun
*many people were stupid enuf to say that the Thompson Sub machine gun belongs to the machine gun category they are 100% pure dumbasses*
Famous 30's machine gun, originally designed for use in WWI but never saw active service. Instead it became a favourite of gangsters from NY to Chicago. Most movies of the time feature its distinctive round under-barrel magazine.
My tommy's gonna make their heaters look like slingshots.