Top definition
Somebody who goes for the cheap or fast way to gain "Achievement Points" on XBOX360 or WoW, even though they are useless and give you nothing.

Example 1)
Shawn: "Hey scoot wanna play some elimination in Gears of War 2"?
scoot: "no thanks, lets do some flashback maps"
Shawn: "why"
scoot: ".....its fun....and i also need the achievements"
Tyson: "Stupid "Achievementist".

Shawn: "Hey scoot wasup?"
Shawn: "is scoot there?"
Tyson: "Hes probably playing single player campaign dumb achievementist

by Savagee March 30, 2009
Get the mug
Get a Achievementist mug for your mate Manley.