Completionist 

Someone who, when playing a video game, has to collect all of a certain item, or complete something in the game 100%.

Only a completionist would collect all of the flags in Assassin's Creed.

Completionist by Cobbbler May 1, 2010

Completionist 

An individual who frequently strives to have a complete set of something, regardless of whether or not the individual pieces have any importance or value.

Boy: I've almost caught every single Pokémon!
Girl: Aren't there like 700 something now? You can't possibly raise them all.
Boy: Yeah, but I HAVE to catch them all!
Girl: Ugh, you're such a Completionist!

Completionist by AkuKnives October 13, 2014

Completionist 

A person who feels compelled to attain every possible acheivement in whatever video game they play.

I got bored with this game ages ago but I'm a bit of a completionist, so I'm playing it on a harder difficulty level

Completionist by AIDSLOL October 21, 2010

completionism

An overwhleming urge to find every collectible of a set or complet a game to 100%. Often associated with being a completionist.

My completionism led me to find every flag in Assasin's Creed

completionism by Catdrewz July 3, 2016

to completion

To the point of climax or ejaculation.

I gave him a blowjob to completion, then gobbled his load.

My date sucked me to completion, then gobbled my load.

to completion by Flossy Spacek September 18, 2009

Completition 

The act of treating a test, usually of skill or knowledge, as if it were timed and/or a race. This occurs most typically in an academic setting, but can be seen elsewhere, as in IQ or personality tests. The winner of a completition can be determined either by the fastest time, the best score or results, or most commonly a combination of the two.

Hortense: How'd you do on the Calc test, Biff? I pulled out a B+.

Biff: Eh, I got a B-, but I was the first one done by fifteen minutes. I totally won the completition.

Completition by Hybrid Raj March 30, 2011

competish 

Short for competition. Used for minute-long chats between friends, quick sizing-ups between teammates, conversations among reality tv fans etc.

Greta: I wish I wasn't a cheerleader.
Farrah: Ugh, you're just saying that because you're nervous for tomorrow's competish.

Dirk: Hey man, look at that guy doing three-pointers over there.
Nigel: Psssh, tough competish.

Barb: I totally think she should've won america's next top idolized champion contender bachelorette.
Kemp: Well, what can we do? This year's competish was cutthroat.

competish by i love second hand smoke May 13, 2005