A heater is a person who acts like a goon but is from the suburbs. It's a persona made to appear "dangerous" or intimidating even in a nonhostile environment. They typically have black air forces, a perm, mace, and a shitty chuff.
by 403kane November 12, 2020

A fastball in baseball lingo. It can also be used to describe a singular movement of increased intensity that is designed to bewilder another person.
Originally from the movie The Bad News Bears.
Originally from the movie The Bad News Bears.
by J Dubya December 29, 2004

To shove, forcefully, a fully-engorged penis into someone's rectum. Without lube and without warning. Causing a sharp rise in pulse, blood pressure, and sweat.
Guy A: "Bro, did you ever tag that Emily bitch?"
Guy B: "Please. Dude, I fucking ran 'the heater' on her."
Guy B: "Please. Dude, I fucking ran 'the heater' on her."
by Bill February 12, 2006

by ugotkuhmdawn February 10, 2020

A gun, not always loaded, typically a 9mm hand gun. Used if loaded to shoot(DUH) Unloaded good for a bluff.
Dally: We can't walk alone at all. I started carrying a heater...
Ponyboy: Dally! You kill people with heaters!
Dally: You kill 'em with swtichblades too don't ya kid? Don't worry it ain't loaded. I ain't aimin' to get picked up for murder. But it sure does help a bluff.
Ponyboy: Dally! You kill people with heaters!
Dally: You kill 'em with swtichblades too don't ya kid? Don't worry it ain't loaded. I ain't aimin' to get picked up for murder. But it sure does help a bluff.
by Littlexxpuppet January 4, 2011

by Austin Tyrrell January 2, 2008

In baseball, the fastball pitch. At the major league level, the heater generally travels to the batter a speed of 95 mph or more.
by DeJuan December 15, 2004
