A popular body modification surgery that involves the "flipping" of the vaginal and anal canals. Basically after the surgery is done, the girl's butthole is in the front and her pussy is in the back. It is pretty cool looking! Not to be confused with the BV switch.
" Come on everybody lets take a trip, ever been with a bitch with a BV flip?"-popular rap song.
by Legodogel May 01, 2012