Top Definition
instant mood killer + awkwardness
Joe: Hey, did you see that cheerleader who suffered from the side effects of the H1N1 vaccine? She was jerking all over the place, I couldn't stop laughing when I saw the video haha

Dave: That's not funny.

Joe: ...

Bill: soo, anyone want another beer...? I'm gonna... go get some beer.
by TheGreatDekuTree February 09, 2010

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A term first used by famous Tumblr user Rachel Linklater, "That is not funny" is a phrase said by a triggered person in response to an offensive joke. This is often followed up by the reasoning behind the un-funniness of the joke.
Bobby: I have crippling depression.
Rachel: That's not funny, my uncle commit suicide.
by Zenguin March 15, 2017

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One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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