A person (male or female) who is so ugly, they ressemble that turd who's head is sticking out of your ass, but the rest will not come out.
Tim: Yo dude, you see that chick by the bar?

Joe: Yea, she was a real Muddpuppy!
by Liknunotha January 16, 2008
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that turd who's head is sticking out of your ass, but the rest will not come out.
carl: Yo, I shouldn't have eat that burrito. I had a Muddpuppy for like an hour!
by Mitchell Sarver January 16, 2008
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