| Abbreviation | Definition |
|---|---|
| BLAH | Boston Ludophiles Andrew Hosting |
| BLISS | Being Loved In Sacred Serenity |
| BLM | Baltimore Lives Matter |
| BLM | Bitchy Lesbians Matter |
| BLM | Bitter Little Man |
| BLM | Black Lives Matter |
| BLM | Bureau of Land Mis-management |
| BLM | Bureau of Lies and Manipulations |
| BLO | Barbie Liberation Organization |
| BLOG | Based Loosely On Groupware |
| BLOG | Better Listings On Google |
| BLOG | Biological Links On the Globe |
| BLOG | Boring Lesson On Galaxy |
| BLOG | Boring Lump Of Garbage |
| BLOGGER | Big Lost Ogres Grab Giggling Elephants Rapidly |
| BLT | Barbara Lee's Team |
| BLT | Big Lame Turkey |
| BLT | Black tie, Lingerie, or Toga |
| BLT | Bossy Little Thing |
| BLU | Bye, Love You! |