| Abbreviation | Definition |
|---|---|
| FROGS | Friends And Relatives Of Gadigal Services |
| FS | Funny Stuff |
| FSA | Faggy Saggy Aggie |
| FSA | Flying Saucer Attack |
| FSE | French Snobbery Everywhere |
| FSL | Fix Silvia Later |
| FSM | Flying Spaghetti Monster |
| FSM | Flying Sphagetti Monster |
| FSM | Fred Savage Mafia |
| FSM | Fry Sailor Moon |
| FSN | Few See Nascar |
| FSN | Freakin Sports Nothings |
| FSS | Force Sensitive Salami |
| FSSW | Full Service Sex Worker |
| FSU | Florida Scares Us |
| FSU | Florida's Sorriest University |
| FSU | Free Shoes University |
| FSU | Free Shopping University |
| FTA | Funkier Than All |
| FTAD | Facebook /Twitter Addiction Disorder |