a typical profile picture on facebook or myspace involving a girl holding a camera, taking a picture of herself with her lips puckered, eyes looking off to the distance, and flashing a gangsta peace sign. usually the girl is a slut and the kind who would steal your boyfriend so BIBA is an acronym that stands for "Bitch Is stealing my Boyfriend And i want to punch her in the puckered mouth"
*looking a pictures of some girl on myspace*
other girl: oh my gosh! she is totally flashing the Biba face. don't let that bitch near your boyfriend!