A video gamer who plays games to unlock achievements on a gaming service, such as Microsoft Studios' Xbox Live, Sony Computer Entertainment's PlayStation Network (trophies), and Valve Software's Steam. Achievement hunters often have a tendency to be completionists.

The term is named after the popular Rooster Teeth Productions division called Achievement Hunter, which started out as website for achievement guides before becoming a well-known Let's Play group.
My friend is an achievement hunter. He won't stop playing a game until he unlocks every single achievement out of it.
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someone who has achieved the most out of a certain number of people.
Michael Jackson is the most achieved music artist ever!
by diamondgirl February 14, 2012
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A phrase used mainly by the gamer community to express a feeling of satisfaction after having successfully completed a particular task or venture.

"Achievement unlocked" is the official phrase used on Microsoft's Xbox 360 console. The phrase appears on the screen after the player has accomplished a specific in-game task.

The phrase was first used out of game context in the comedy series "The Guild."
Mariam: Victor, your idea to add nap rooms inside the corporate offices has been accepted and will be implemented next week.

Victor: Achievement unlocked!
by Coniption February 9, 2011
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Lame ass school that needs to be shut down. DO NOT GO HERE, BY ANY MEANS‼️ The teachers, cuticular, and whole school is shitty, lame af😐
You go to Achievement First? That’s mad dayroom😭
by Ldd😉 June 25, 2019
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a fart that does not make a sound but achieves its purpose, that of leaving its mark on its surroundings in more ways than one
douglas hondo: can you smell that?

heath streak: ahh what do you mean? (looking away gingerly)

douglas hondo: it smells like a gas leak

heath streak: sorry, had chilli con carne for dinner

douglas hondo: they call you the typical relentless quiet achiever
by sir duffington strikes again December 7, 2009
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The act of sabotaging, whether intentionally or not, the goals of one's daily life in favour of extreme procrastination and dilly-dallying. This can include slaving away at the Keg for 9 hours straight, eating dinner/taking a shower for 2 hours and scrolling mindlessly through your Instagram feed.
Friend 1: Hey, have you seen Brian lately?
Friend 2: Nah, he's been achieving sargood.
Friend 1: That explains the incredibly stiff gelled hair. Thanks!
by achieve_peterson_4328490894 March 10, 2023
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Achievement Hunter is a video gaming website created by Jack Pattillo and Geoff Ramsey of Rooster Teeth Productions. It is also a division of Rooster Teeth. The series they make include: Lets play's, Lets Play Minecraft, Fails of the Week, Rage Quit, GO, Achievement H.U.N.T, AHWU, and many others. The people that currently work for Achievement Hunter are Geoff Ramsey, Jack Pattillo, Gavin Free, Ray Narvaez Jr, Michael "Rage Quit" Jones, Ryan Haywood, Lindsay Tuggey, and Caleb Denecour. The people that work here also work for Rooster Teeth.
Man, those Achievement Hunter guys are hilarious!
by GoonyMauney December 27, 2013
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