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When you say something and you mean it in a genuine, sincere way, but it comes out sounding horribly sarcastic.
Tom: "Hey, sorry I'm late."
Raphael: "No problem, after waiting so long I'm just glad you showed up at all!"
Tom: "Are you being sarcastic?"
Raphael: "Nah, sarry man. I have a problem with sincerecasm."
by 96_thomas October 29, 2013
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