The act of a man masturbating using Vaseline as a lubricant, and upon completion lighting his dick on fire.
Andy was feeling particularly spicy, so he preformed a slippery heater once he got home from school.
by KingFlippyNips May 30, 2018

by Johnny slang December 16, 2021

When you fart and it goes up the front instead of the back leaving a warm feeling in your crotch, usually happens when sitting down and not lifting a cheek to release the fart.
Person 1 "Dude why are you moving around all funny"
Person 2 "just trying to fix my balls, I just gave myself a dirty heater"
Person 2 "just trying to fix my balls, I just gave myself a dirty heater"
by CrayKay November 27, 2012

A badass fireman mustache or any well groomed, luscious stache that all the homosexuals want to wear during a cold and lonely night.
Captain- “Hey boys! Good work on that fire let’s go grab a drink down at the tavern.”
Firefighter- “But today is ThursGAY and they might hit on your awesome heater.”
Captain- “Win-win, lets go!!”
Firefighter- “But today is ThursGAY and they might hit on your awesome heater.”
Captain- “Win-win, lets go!!”
by 69i812 February 28, 2019

Shortened term used by problem gamblers to denote a "dead heat" or tie among multiple finishers in a horse race.
Marcus: That photo at the wire shows a three-horse heater for the win.
Will: You're freakin' goofy, man. Those track stewards are fixing the finish to cover their phony bets.
Will: You're freakin' goofy, man. Those track stewards are fixing the finish to cover their phony bets.
by wch-meister August 9, 2017
