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1.
A dog, usually a black lab, that is stinky and fat like a hippotamus. He is sooo cute that real words are enough, you have to make new ones up.
My dog is a stinkopotamus
by Loki the irish orange tabby ca February 17, 2011
 
2.
Giraffe: "That hippopotamus stinks!"
Zebra: "Must be a stinkopotamus."
by susc0176 April 19, 2011