| Abbreviation | Definition |
|---|---|
| BID | Back In the Days |
| BID | But I Digress |
| BIDI | But I Doubt It |
| BIDIA | But I Did It Anyway |
| BIF | Before I Forget |
| BIFF | But I Fell Flat |
| BIG | Beer Is Good |
| BILY | Because I Love You |
| BILY | But I Love You |
| BIME | Beautiful In My Eyes |
| BIMP | Bring In More People |
| BIO | Beautiful Inside and Out |
| BIO | Bring It On |
| BIO | Bun In the Oven |
| BIO | By Invitation Only |
| BIOS | But It's Only Silly |
| BIOYA | Blow It Out Your A** |
| BIOYA | Blow It Out Your Ass |
| BIOYIOP | Blow It Out Your I/O Port |
| BISLY | But I Still Love You |