| B/C | BeCause (frequently just "b/c") |
| B3 | Blah |
| B4 | Before |
| B4N | Bye for Now |
| BAC | By Any Chance |
| BAD | Broken As Designed |
| BAIK | Boy Am I Confused |
| BAK | Back At Keyboard |
| BAMF | Bad Assed Mother F---er |
| BANANA | Built Absolutely Nothing Anywhere Near Anybody |
| BB | Be Back |
| BBFN | Bye Bye For Now |
| BBIAB | Be Back In A Bit |
| BBL | Be Back Later |
| BBR | Burnt Beyond Repair |
| BBS | Bulletin Board System; Be Back Soon |
| BBW | Big Beautiful Woman |
| BC | Basket Case |
| BCC | Blind Carbon Copy |
| BCNU | Be seein' you! (saying goodbye) |
| BEG | Big Evil Grin |
| BF | Boyfriend |
| BFD | Big F---ing Deal |
| BFG | Big Friendly Giant; Big F---ing Gun; Big F---ing Grin |
| BFH | Big F---ing Hammer |
| BFI | Brute Force and Ignorance; Bunch of F---ing Idiots |
| BFM | Big F---ing Magic |
| BFMI | Brute Force and Massive Ignorance |
| BFN | Bye For Now |
| BFOG | Blouse Full Of Goodies |
| BG | Big Grin (as in <bg>) |
| BIC | Best In Class |
| BICBW | But I Could Be Wrong |
| BIL | Brother In Law |
| BION | Believe It Or Not |
| BIOYIOP | Blow It Out Your I/O Port |
| BISS | Because I Say So |
| BITD | Beaten It To Death |
| BK | Because |
| BKA | Better Known As |
| BKAM | Between Keyboard And Monitor (i.e. |
| BMF | Bad Mother F---er |
| BMOC | Big Man On Campus |
| BMTIPG | Brilliant Minds Think In Parallel Gutters |
| BNF | Big Name Fan |
| BNI | Batteries Not Included |
| BOC | But Of Course |
| BOF | Birds Of a Feather |
| BOFH | Bastard [system] Operator From Hell |
| BOGOF | Buy One Get One Free |
| BOHICA | Bend Over |
| BOL | Best Of Luck |
| BOS | Big Orange Switch |
| BOT | Back On Topic |
| BOTE | Back Of The Envelope |
| BOTEC | Back Of The Envelope Calculation |
| BRB | Be Right Back |
| BRS | Big Red Switch |
| BS | Bull S--- |
| BSEG | Big S--- Eating Grin |
| BSG | Broad Sweeping Generalization; Big Smiling Grin |
| BSOD | Blue Screen Of Death |
| BTA | But Then Again (in response to IOW) |
| BTAICBW | But Then Again I could Be Wrong |
| BTAIM | Be That As It May |
| BTDT | Been There |
| BTDTGTTS | Been There |
| BTFT | Been There, Fixed That |
| BTFT | Beats The Funk Out Of Me |
| BTLSOM | Beats The Living S--- Out of Me |
| BTOBD | Be There Or Be Dead |
| BTSOOM | Beats The S--- Out Of Me |
| BTW | By The Way |
| BUAF | Butt Ugly ASCII Font |
| BUAG | Butt Ugly ASCII Graphic |
| BUGS | Bloody User Generated Symptoms |
| BWQ | Buzz Word Quotient |
| BY | BusY |
| BYKT | But You Knew That |
| BYKTA | But You Knew That Already |
| BYOB | Bring Your Own Booze/Bottle |
Unless otherwise noted, all photos and text is Copyright © Richard G Lowe, Jr.