tommygun

Thompson submachine gun. Saw extensive use during gang warfare in the 1920s and 1930s, World War II, and Korea.

You know you're a gangster when you wear a fedora and carry a Tommygun.

by Student-Athlete October 21, 2004

Riding tommygun

Hanging off the side of a car while the car is in motion, similar to how people in the mafia used to do while holding Tommy guns

There’s a cool picture of a mafia member riding tommygun to the gang hideout

by RkoIsLife1738 January 24, 2023