| Abbreviation | Definition |
|---|---|
| BL | Big And Lovable |
| BLA | Boring Lame Annoying |
| BLAH | Better Laugh And Hug |
| BLAH | Both Lovable And Hollistic |
| BLBBLB | Back Like Bull, Brain Like Bird (instant messaging) |
| BLKD | Blocked |
| BLM | Bad Little Mother |
| BLM | Be Like Me |
| BLS | Blown Like S*** |
| BLT | Be Like That |
| BLT | Be Like Them |
| BLT | Better Look Twice |
| BLTN | Better Late Than Never |
| BLU | Be Like Us |
| BLVD | Beloved |
| BLZRD | Blizzard |
| BM&Y | Between Me and You |
| BMA | Best Mates Always |
| BMAAFTTVE | Best Mates Always And Forever Till The Very End |
| BMAU | Between Me And You |