| Abbreviation | Definition |
|---|---|
| FBI | Female Body Investigator |
| FBI | Fender Bender International |
| FBI | File Bunglers, Inc. |
| FBI | Fine Babe Inspector |
| FBI | First Burnout Incarceration |
| FBI | Foolish Banner Investigation |
| FBI | Foolish Bungling Idiot |
| FBI | Fools Bureau of Ineptitude |
| FBI | Fools, Buffoons, and Idiots |
| FBI | Forever Bothering Italians |
| FBI | Forever Buggin Italians |
| FBI | Frequent Blunders and Incompetence |
| FBI | Frequently Bungled Investigations |
| FBI | Fried Beyond Identification |
| FBI | Friendly Bus Investigator |
| FBI | Friendly But Ignorant |
| FBI | Front Board of Idiots |
| FBI | Fruity-Bearded Indian |
| FBI | Full Blooded Italian |
| FBI | Full Blown Insanity |