Top Definition
1: Shoving a can or bottle of Mountain Dew up your butt because you're a tool and you like Mountain Dew.

2: The giant poop you take after drinking too much Mountain Dew because you're a tool and you like Mountain Dew.
1: Person 1: That guy is such a tool.

Person 2: We should give him a Mountain

Dewdoo.

2: Person 1: She is such a tool.

Person 2: Yeah I hope she takes a Mountain Dewdoo from all that Mountain Dew she has been drinking.
by TanAir December 09, 2013

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