| Acronym | Meaning |
| EOD | End Of Day |
| EOL | End Of Lecture |
| EOL | End Of Life |
| EOM | End Of Message |
| EOT | End Of Thread (end Of Forum Discussion) |
| ESAD | Eat Sh*t And Die |
| ESADYFA | Eat Sh*t And Die You F*cking Asshole |
| ESEMED | Every Second Every Minute Every Day |
| ESH | Experience, Strength, And Hope |
| ESMF | Eat Sh*t Mother F*cker |
| ESO | Equipment Smarter Than Operator |
| ETA | Estimated Time Of Arrival |
| ETA | Edited To Add |
| EVRE1 | Every One |
| EWI | E-mailing While Intoxicated |
| EZ | Easy |
| F2F | Face-to-Face |
| F2T | Free To Talk |
| F? | Friends |
| FAB | Features Attributes Benefits |
| FAH | F*cking-A Hot |
| FAH | Funny As Hell |
| FAP | F*cking-A Pissed |
| FAQL | Frequently Asked Questions List |
| FASB | Fast Ass Son (of A) Bitch |
| FAWC | For Anyone Who Cares |
| FB | F*ck Buddy |
| FBI | Female Body Inspector |
| FBI | F*cking Brilliant Idea |
| FBKS | Failure Between Keyboard And Seat |
| FCFS | First Come, First Served |
| FDGB | Fall Down Go Boom |
| FE | Fatal Error |
| FF | Friends Forever |
| FF&PN | Fresh Fields And Pastures New |
| FFS | For F*ck Sake |
| FGDAI | Fuhgedaboudit (Forget About It) |
| FIF | F*ck I'm Funny |
| FIIK | F*cked If I Know |
| FIL | Father-In-Law |
| FILF | Father I'd Like To F*ck |
| FILTH | Failed In London, Try Hong Kong |
| FINE | F*cked Up, Insecure, Neurotic, Emotional |
| FISH | First In, Still Here |
| FITB | Fill In The Blanks |
| FLA | Four Letter Acronym |
| FLUID | F*cking Look It Up, I Did |
| FMLTWIA | F*ck Me Like The Whore I Am |
| FMTYEWTK | Far More Than You Ever Wanted To Know |
| FMUTA | F*ck Me Up The Ass |