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a person who only plays their xbox 360 console to gain achievements, and increase their gamerscore.
Man bob is a huge Achievement-Whore his gamerscore is 30,000G
by Magical Bread November 15, 2008
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2
Person who acquires XBOX 360 console games for the soul purpose of getting all of the achievements for that game to gain gamerscore.
Dude, have you seen nick's gamerscore? It is hella high.

yeah, he is such a fuckin' achievement whore.
by Masonlolkthx November 05, 2007
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