| Abbreviation | Definition |
|---|---|
| BRO | Brother |
| BROKEN | Hungover from alcohol (not an acronym) |
| BROSIS | Brother & Sister |
| BRRRR | A way to say "very cold" (not an acronym) |
| BRT | Be Right There |
| BS | Be Sweet |
| BS | Biting Sarcasm |
| BS | Bring Snickers |
| BS | Bull S*** |
| BS | Bull Shit |
| BSBFF | Big Sister Best Friend Forever |
| BSBU | Building S*** Back Up |
| BSC | Bat S*** Crazy |
| BSC | Bat S**t Crazy |
| BSC | Bull S*** Crew |
| BSCB | Bat S*** Crazy B**ch |
| BSF | Black Single Female |
| BSH | Boston S*** House |
| BSH | Boston S**t House |
| BSIM | But Someone Isn’t Me |