| B&F | Back and Forth |
| B/C | Because |
| B4 | Before |
| B4N | Bye For Now |
| B4U | Before You |
| B4YKI | Before You Know It |
| BAG | Busting A Gut -or- Big Ass Grin |
| BAK | Back At my Keyboard |
| BAMF | Bad Ass Mother F***er |
| banana | it means: penis |
| BAU | Business As Usual |
| BB | Be Back |
| BB4N | Bye Bye for Now |
| BBAMFIC | Big Bad Ass Mother F***er In Charge |
| BBB | Bye Bye Babe -or- Boring Beyond Belief |
| BBBG | Bye Bye Be Good |
| BBFBBM | Body By Fisher, Brains By Mattel |
| BBFN | Bye Bye for Now |
| BBIAB | Be Back In A Bit |
| BBIAF | Be Back In A Few |
| BBIAS | Be Back In A Sec |
| BBIAW | Be Back In A While |
| BBL | Be Back Later |
| BBMFIC | Big Bad Mother F***er In Charge |
| BBN | Bye Bye Now |
| BBSD | Be Back Soon Darling |
| BBSL | Be Back Sooner or Later |
| BBT | Be Back Tomorrow |
| BBW | Big Beautiful Woman |
| BCBG | Bon Chic Bon Genre -or- Belle Cu Belle Geulle |
| BCBS | Big Company, Big School |
| BCNU | Be Seein' You |
| BCOZ | Because |
| BD | Big Deal -or- Baby Dance -or- Brain Drain |
| BDBI5M | Busy Daydreaming Back In 5 Minutes |
| BDC | Big Dumb Company -or- Big Dot Com |
| BDN | Big Damn Number |
| BEOS | it means: nudge |
| BF | Boyfriend -or- Best Friend -or- Bitch Features |
| BFD | Big F***ing Deal |
| BFE | Bum F*** Egypt |
| BFF | Best Friends Forever |
| BFFN | Best Friends For Now |
| BFFTTE | Best Friends Forever Til The End |
| BFN | Bye For Now |
| BFR | Big F***ing Rock |
| BHAG | Big Hairy Audacious Goal |
| BHG | Big Hearted Guy -or- Big Hearted Girl |
| BHOF | Bald Headed Old Fart |
| BI5 | Back In Five |
| BIBI | Bye Bye |
| BIBO | Beer In, Beer Out |
| BIF | Basis In Fact -or- Before I Forget |
| BIL | Brother-In-Law |
| BIOIYA | Break It Off In Your Ass |
| BIOYE | Blow It Out Your Ear |
| BIOYIOP | Blow It Out Your I/O Port |
| BIOYN | Blow it Out Your Nose |
| BITCH | Basically In The Clear Homey |
| BITD | Back In The Day |
| BJJDI | Billy Joel Just Drove In |
| BKA | Better Known As |
| BL | Belly Laughing |
| BLBBLB | Back Like Bull, Brain Like Bird |
| BM | Byte Me |
| BMF | Bad Mother F***er |
| BMGWL | Busting My Gut With Laughter |
| BMOF | Bite Me Old Fart |
| BMOTA | Byte Me On The Ass |
| BNDN | Been Nowhere Done Nothing |
| BNF | Big Name Fan |
| BO | Bug Off -or- Body Odor |
| BOB | Battery Operated Boyfriend |
| BOBFOC | Body Off Baywatch, Face Off Crimewatch |
| BOCTAAE | But Of Course There Are Always Exceptions |
| BOFH | Bastard Operator From Hell |
| BOHICA | Bend Over Here It Comes Again |
| BOTEC | Back Of The Envelope Calculation |
| BOTOH | But On The Other Hand |
| BPLM | Big Person Little Mind |
| BR | Bathroom |
| BRB | Be Right Back |
| BRT | Be Right There |
| BS | Big Smile -or- Bull Sh** -or- Brain Strain |
| BSAAW | Big Smile And A Wink |
| BSBD&NE | Book Smart, Brain Dead & No Experience |
| BSEG | Big Sh** Eating Grin |
| BSF | But Seriously, Folks |
| BSOD | Blue Screen of Death |
| BT | Byte This |
| BTA | But Then Again -or- Before The Attacks |
| BTDT | Been There Done That |
| BTDTGTS | Been There, Done That, Got The T-shirt |
| BTFO | Back The F*** Off -or- Bend The F*** Over |
| BTHOOM | Beats The Heck Out Of Me |
| BTSOOM | Beats The Sh** Out Of Me |
| BTTT | Back To The Top -or- Bump To The Top |
| BTW | By The Way |
| BTWBO | Be There With Bells On |
| BTWITIAILW/U | By The Way I Think I Am In Love With You |
| BW | Best Wishes |
| BWDIK | But What Do I Know |
| BWL | Bursting With Laughter |
| BWO | Black, White or Other |
| BYKT | But you Knew That |
| BYOA | Bring Your Own Advil |
| BYOB | Bring Your Own Bottle -or- Bring Your Own Beer |
| BYOW | Build Your Own Website -or- Bring Your Own Wine |
| BZ | Busy |
