| Abbreviation | Definition |
|---|---|
| FMTRL | For Me To Read Later |
| FNA | For Necessary Action |
| FNO | From Now On |
| FOAF | Friend Of A Friend |
| FOCL | Falling Off the Chair Laughing |
| FOF | Frown On Face |
| FOROOB | Fear of Running Out Of Battery |
| FPP | free public parking |
| FPP | free public place |
| FR | For Real |
| FSE | Festus Slug E |
| FT | for in Texting |
| FTM | Far Too Many .... |
| FTM | For That Matter, .... |
| FTMP | For The Most Part, .... |
| FTW | From The West |
| FWIW | For What It's Worth |
| FY | F*ck You |
| FYA | For Your Amusement |
| FYAP | For Your Action Please |