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A more colorful term for butt hole or anus. It can also be used as an insult.
"Why does my breath smell like crap?"
"Because I rubbed your toothbrush on my doodoo cave."

"Why did you eat my last ice cream sandwich?"
"Because you're a doo doo cave who does not deserve such a tasty treat."
by HØØt March 11, 2010
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