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Said location on female's body residing where the leg meets the butt cheek forming a sort of "flap". Most prominently shown off by "hotties" and "hoes".
1. Check out the boonchi on that bitch!
2. OMFG that fat chick's boonchi is like 40 pounds!
3. That slut's boonchi is hangin out her daisies.
by prodiGyBNTY March 25, 2003

Words related to Boonchi

ass boonchie boonchy booty budonkadonk bum butt