fibber

noun — 2 senses

fibber

nounalso spelled Fibber

Etymology From fib (“to lie”) + -er.

1

Informal, Rare A liar.

Fibber

noun

1

Derogatory, Slang An FBI agent.

This new ID and the new credit card will throw a wrench in the FBI's machine. Those Fibbers will never know what hit them.2016, Steven Lee, Project Sanctuary, page 331:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — authors: page histories for fibber and Fibber.