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A Youtuber that makes videos with puppets and has just over a million subscribers.
by DatBoiNick April 20, 2017
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An extremely hilarious YouTuber who makes content with his Mario related plush toys. He makes comedic skits with his famous characters like Jeffy, Bowser Jr, Chef PeePee etc.
Yo, SuperMarioLogan uploaded an awesome Jeffy video!
via giphy
by RaspBerryChipmunk July 26, 2017
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A loser who still plays with and makes YouTube videos Mario plush toys despite being a fully grown adult. Originally they were teenagers so it was kind of funny, but now they are definitely sick in the head as they are pretending that their plush toys are having sex with each other. Sometimes shortened to SML. Also, lots of unfunny rape, autism, and poop jokes.
Guy 1: "Dude did you check out the latest SuperMarioLogan video????
Guy 2: "It isn't Grade 2 anymore. You're a moron."
by TheCanadianQuestion November 19, 2017
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