Fibber
Fibber is derogatory slang for an FBI agent — a phonetic riff on the initialism 'FBI' that drips with distrust and contempt.
Definitions
Fibber is derogatory slang for an FBI agent — a phonetic riff on the initialism 'FBI' that drips with distrust and contempt. It's the kind of nickname that signals you're not exactly a fan of federal law enforcement. Used in criminal, counterculture, and anti-establishment circles where calling someone a Fibber is basically calling them a snitch in a suit.
Word got around that the new guy at the bar was a Fibber running an undercover operation.
Comments
(slang, derogatory) An FBI agent.
“Oh come on you little fibber~ You LOVE how weak you are to Mami~”
— Bluesky· May 2026
Comments
Have a better definition?
Add your own interpretation of "Fibber".
🗺️About Regional & Other slang
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.
Tags
Other words near "Fibber" (F)
Browse all slang words starting with F.