pronounced like P diddy. A badiddy is a ass, that isn't quite a badunkadunk, its smaller, fits better on the girls body, and mostly can be said to be a "pretty booty".
"Damn girl, you have a badiddy, why don't you come over here?"

If the girls from San Diego, or Boulder Colorado, she might know the term and take it as a compliment.
by Gabe GTZ September 4, 2007
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