| Abbreviation | Definition |
|---|---|
| FDW! | Free Donuts Welcome! |
| FE | Fair Enough |
| FE | For Example |
| FEB | Friday Enrichment Block |
| FEL | F*** Everybody's Life |
| FEMA | Fix Everything My A** |
| FERL | Friends Eat Real Lettuce |
| FF | Far Face |
| FF | Forum Feedback |
| FFA | Free For All |
| FFA | Frequently Forgotten Answers |
| FFB | Fall From Bed |
| FFC | Fossil-Fuel-Companies |
| FFE | For Friends Forever |
| FFES | Friend From Elementary School |
| FFF | F*** Fake Friends |
| FFF | Facebook Friends Forever |
| FFF | Fan Fiction Forum |
| FFF | Fightin Fundamentalist Forum |
| FFF | Five Favourite Forum |