2 definitions by WitherHD

The third episode in the Battle Kid Game Grumps series, in which one of the hosts, Arin Hanson, has various mental breakdowns due to being unable to beat a boss. In the end he quits the game by mistake. This phrase can be used when talking about a horrible experience.
Oh, it's Battle Kid Episode 3 all over again...
by WitherHD May 16, 2016
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1. Racing video game series published by Nintendo, featuring primarily characters from the Mario franchise.

2. A sexual act involving the ejaculation of a dog inside of you, or your ejaculation inside a dog.
1.

Mario: Hey brother, you up for a game of Mario Kart?
Luigi: Sure thing bro, get the Gamecube set up.

2.
Mario: So, you got any plans tonight?
Luigi: Eh, not much, was thinking of doing a Mario Kart...
Mario: That poor dog of yours doesn't know what's coming...
by WitherHD November 19, 2017
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