When friend will not leave you and a member of the opposite sex time alone. Thus causing frustration.

See also cock block
Dude Dirkamo Dustin is such a game kill!!!
by oh my dawg June 20, 2006
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some one who comes un-invited to places where people do not want this person. A loser who watches movies all day and goes on myspace because no one wants to be around him/her
Dustin ross came to mcdonalds un-invited so we had to leave because he is gay and no one likes him(GAME KILL)
by allie hughes June 21, 2006
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The kill that wins the match in an online game. Most well known in the FPS, Modern Warfare 2, which accompanies every one showing a slow motion replay video that everyone must watch. Can consist of lame, average sprays, or simply unbelievable feats of awesomeness.
by Joshie G. April 23, 2010
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A killing game is when you have 16 Students with unique talents -also known as Ultimates or SHSL- in one area with no exits and force them to kill each other. When it inevitably happens, a monochromatic bear forces you to investigate the crime scene, interrogate your best friend, and participate in a class trial. There, you figure out who is the blackened who committed the crime and condem them to an execution which is weird and fucked up. This goes on for five chapters then the sixth is for figuring out the mastermind of the killing game where you figure out that it's been Junko Enoshima all along.
God fucking damnit this bitch died in the first Killing Game, so why is she back?!?!
by CarterEudoxin December 24, 2017
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