The dregs from a rum barrel.
"I got sloshed from drinking the dunder." Hince the phrase, "He's a dunderhead."
Mark Dunder가 작성 2003년 08월 04일 (월)

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Top Definition
An alias for double underscore, "__". Specially useful in the Python computer language, in which names like "__init__" are common. Coined as a speech shorthand.
Eric: So the problem is initdata? (the method initdata() )
John: Nope, dunder init dunder is where things start to go wrong... (__init__)
ajaksu가 작성 2006년 05월 22일 (월)

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Dunder is a combination of the words dirty underwear.
"make sure to wash your dunders" "Dunderwear, clothes for the working man" "Dunderwear soft enoughf for a mans buttox, toughf enough to handle the swamp ass of a working man"
Heyballookey2가 작성 2008년 10월 22일 (수)

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A person who is utterly useless and incoherent. The IQ of this person almost always matches, or is close to, that of an average person's shoe size.
Dunder was unable to click the cube because his bandage was in the way.
DDunder가 작성 2007년 06월 28일 (목)

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Polite word for fart.
What that a dunder, Geoffery?
Its Calum!가 작성 2008년 05월 26일 (월)

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Another word for drunk, or just really intoxicated.
Damn, i'm gonna be so dunder after this beer bong.
Chase가 작성 2003년 08월 03일 (일)

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