Top Definition
A meme-killer is a person that overuses a certain meme or phrase. They use it so often that it becomes old and unfunny very quickly. The meme-killer is especially bad when using the meme incorrectly.
John: 'How was dinner?'
Tim: 'Feels good man.'
John: 'Shut the fuck up already you meme-killer.'
by four1111s July 26, 2011
Someone who ruins a meme by overusing it, giving it a bad rep, making bad jokes about it, etc.
Marcus: Dude Joseph is such a memekiller,
Julio: Yeah he fucked up autism memes forever
Joseph: *Commits suicide
by papafrank_;-; June 05, 2016
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