An acronym meaning "Be Authentic Never Jeopardize Individuality" made popular to the mainstream public by Sharaya J in the song Banji produced by Missy Elliot
A gentleman that has the balls to call himself Benji Boo is clearly an alpha with an average forehead and an above average penis. Definitely don't get on Benji Boo's bad side unless you want your asshole torn to shreds by an angry Brazilian.