Top Definition
Your boyfriend/girlfriend.
"Dat's my boo your messin' wit!"
by Madtoys101 December 03, 2005
1 more definition
Unfortunate pet names for a vagina. Especially one of those really scary looking vaginas, or one in an ill state of health. Like Leatherface's botched first attempt at making a skin suit.
My boo is looking busted right now but I'm hoping by tomorrow I'll be better.
by HaarvAard February 01, 2011

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