someone who steals an item then sell it on the street for half price.
ex: if the item is $200 then you will pay the booster $100
by zdhklsebnei November 21, 2018
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A person who steals items from retail stores only to then sell on the streets, usually for a discounted price.
"A booster is a person who jacks from the retailers, then sells it in the hood for dirt cheap resale." - from I Love Boosters! by The Coup
by kr580 August 10, 2008
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Someone who steals for a living. Usually cars, clothing or jewelry.
First guy: "I know she can't afford that purse, she's broke as hell."

Other guy: "She's a booster, I got some Jordans from her the other day."
by burgstyle82 May 7, 2009
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In Modern Warfare 2, a person or group of people who use Tactical Insertions to their advantage, go to a rarely-used place on a map, set the insertions, then continuously kill each other to get a free nuke or a bunch of free headshots. This is considered complete and utter cheating and is commonly rejected by professional players. MW2 pro "Sandy Ravage" has a series on YouTube called Booster Justice which is him killing boosters to no end.
Yo, want to boost?" "No, I don't cheat, you booster.
by SOTE Czar July 28, 2010
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Memphis Raines was told to be the best booster in the car stealing buissnes
by HighRoller_9 January 4, 2008
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A student who takes easier advanced classes so they'd have an easier time getting a high grade in that class.
Primarily done with AP Calculus AB and AP Calculus BC, or one of the science APs(such as taking AP Biology instead of Chemistry).

Highly depends on the school curriculum offered, grading systems, and prerequisites.

Also see GPA whore.
Guy 1: Hey, wasn't X supposed to be with us in Calc BC this year?
Guy 2: Yeah, but after hearing from the seniors about how hard it was, he took AP Statistics so it'll be easier to get an A. "Still an AP" was his defense.
Guy 1: What a fucking booster. It's not like a single A- or B+ will fuck him over for Stanford. This class is curved as fuck too. What a GPA whore.
by xX_LordGaben69_Xx April 30, 2021
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When used in video games,a booster is a player who gains points by unfair means.A booster will usually have another booster with him,or sometimes go into a lobby with a game full of other boosters.The most common ways of boosting involve one player(or one team)standing in one spot the entire game while the other player(or other team)kills them for points.Thus,getting points and leveling up faster without doing any work at all.It would be like doing no work,and getting payed overtime.
Booster 1:Okay,stay there and don't move.

Booster 2:Okay.
Booster 1:*Shoots*
Booster 2:*Dies*
Booster 1:Alright I ranked up.Now you do the same thing.
by Haiso January 6, 2012
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