The guys from the movie/book The Outsiders.
"We gotta get even with those Soc. We will do it for johnny man, do it for johnny" - famous quote from Greaser
by isawapuddytat November 18, 2009
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A group of people(typically back in the 50's - 70's) who got their names from the "grease" or olive oil they used to slick back their hair with. They go in groups but are not gangs, they will use anything as a weapon and make a living by doing whatever they gotta do.
"Hey look at that greaser over there!"

"Hey grease! why don't you come over here and let me cut that hair!"
by R3DN3CKBEAN3R March 14, 2009
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An extremely overcompetitive gamer, also known as extreme sweats.
Generally those who neglect all form of personal hygiene in order to sweat in a video game to a point that their sweat becomes grease.

People who have never touched grass in their life.
Charlie: Dude we fucking sucked that game.
Alex: Nah man, they're just a squad of greasers.
by Luna O. October 2, 2021
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Derogatory term for Hispanics or Italians (dependent on where you live).
by thatguy July 15, 2003
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Guys: someone who dresses in rockabilly/psychobilly clothes, always has a comb in their back pocket, styles their hair in a pompadour or slicked up and back, wears a little bit of tighter pants then anyone else, sometimes wears white or black wife beater, wears leather jackets or jean jackets, black converse, cigarette held behind ear, styles their hair in petroleum jelly or pomade.

Girls: Styles their hair in a pompadour sometimes which is let down or tied the rest back in a pony tail, sometimes short bangs that curl like sausages (haha), polka dots, high heels, tight pants, colourful fashion shirts, comb in back pocket or purse, cigarette behind ear, converse, styles their with pomade and hair spray, a lot of jewelry, red lipstick, etc.
The outsiders, Grease I, Grease II, Cry Baby...... (there are still some greasers around besides from the 1930-1960s. be a fucking greaser bitches)
by Nekro Jackie October 23, 2005
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A greased up bacon-dick.
Harold: Hey Barbara, where did all that acne come from?
Barbara: My boyfriend slapped me in the face with his greaser.

Harold: Oh
by bobobuns May 20, 2010
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A cool awsome guy that bald insecure idiots talk crap about behind their backs. Uses a light hair grease better known as pomade to slick the hair back and pomp it up. Girs always like these kind of guys becuase they have good looks.
Insecure blad guy's thoughts whenhe sees a cool good looking greaser guy,"man I wish I coud be like him."
by Janet 7 March 22, 2010
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