| Abbreviation | Definition |
|---|---|
| FYFF | F*** Yeah Friendly Fire |
| FYFI | For Your Future Information |
| FYI | F*** Yeah Information |
| FYI | F*** You Idiot |
| FYI | For Your Information |
| FYI | For Your Innerself |
| FYI | Forget Your Idea |
| FYI | or Your Information |
| FYI&A | For Your Information and Action |
| FYIA | For Your Information and Action |
| FYIAP | For Your Information & Action Please |
| FYII | For Your Information Idiot |
| FYIO | For Your Information Only |
| FYITA | F*** You In The Ass |
| FYKA | For Your Kind Action |
| FYKA | For Your Kind Attention |
| FYKAP | For Your Kind Action Please |
| FYKI | For Your Kind Information |
| FYKR | For Your Kind Review |
| FYKS | For Your Kind Support |