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The act in which a two people place a double-sided dildo into their anal and/or vaginal cavity and rock back and forth against each other, therefore looking like the Nickelodeon original character(s) CatDog.
Bro, when I was CatDogging with that Russian last week someone walked in on us and scared me so bad I made a noise like Scooby-Doo.
by CatDogKing007 July 27, 2018
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