Usually on Xbox 360, is a way gamers use to obtain several achievements in a short period of time by using teamwork, glitching, or whatever means necessary to accomplish diffcult achievement criteria.
friend1: Man i need at least 1000 kills on this game for the achievement but its taking too long, what should we do?

friend2: Easy! We can invite all of my friends to join a match. They can just sit there while u kill them over and over for easy kills!

friend1: So you mean boosting?

friend2: Yup my friends have all the achievements anyway!
by SpazPownrOr7z December 21, 2012
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Bangin drink from riverside/delran area. usually in a slush form. Or the very popular Half and Half (Half regular and half slush)
by boost man May 24, 2010
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To be extremely intoxicated or high; under the influence of a substance that causes happiness

synonyms:

Drunk
Wasted
High
Guy 1: "That girl is such a bitch."
Guy 2: "looks like she needs to get boosted!"
by Kronos_660 July 23, 2014
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Any Beverage that makes your day easier- ie alcohol-mylanta-coffee etc
Eric-oh shit brah i had a rough night

Rory-no problem Breh, i got all the fixins for bloody marys
Eric-ahh thanks for the boost bro
by drwu March 04, 2011
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When your girl or your man riding your throbbing cock, and you give them an extra fast, unexpected hard thrust, and they slightly move up as if flinching as a reaction to your thrust.
Got bored last night so I started boosting my girl during cowgirl.
by tigersmom March 24, 2017
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Phrase shouted obnoxiously when another individual has been hoisted on his own petard.
(Three guys walk into a bar)

Paul: Hey John, that shirt looks pretty gay on you.
John: O yea, well your boyfriend got it for me.
Ed: BA-BA-BA-BOOSTED!!!
by Paul Hlatky April 12, 2007
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