| Abbreviation | Definition |
|---|---|
| BPPAA | Bad Poker Players Association of America |
| BPS | Boobie Preservation Society |
| BPS | Boyfriend Positioning System |
| BQ | Bum Quads |
| BR | Babe Ratio |
| BRAC | Bureaucracy Realignment And Closure |
| BradleyPorter | ITS ME! |
| BRAM | Brother From Another Mother |
| BRAT | Beautiful, Rich, Attentive, Thoughtful |
| BRAT | Budding Racer Awaiting Time |
| BRAT | Bulldog Rugrats Against Teachers |
| BRATTT | Bananas Rice Applesauce Tea Toast Turkey |
| BRB | Baby Richie Rocks |
| BRB | Baking Red Bobcats |
| BRB | Be Real Brotha |
| BRB | Big Retarted Bird |
| BRB | British Roo Bars |
| BRB | Buns Running Backwards |
| BRB | Busy Rescuing Batman |
| BRBI | Be Right Back Idiot |