FBI stands for Flat Breathing Insect(airioera) that is a group of insects that don't need oxygen. Most commonly beetles and butterflies. The colors are often brown/black because. NO OXYGEN
Them:I got bit by an FBI!
Me:??????
by TheKiddoGuy October 2, 2022
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Term used in tennis meaning first ball in. You get to serve as many times as you want until you get your first ball in. Usually used if a player didn't warm get to warm up or sucks at tennis.
Pow - yo lets just start this match, we doing FBI
San - FBI for pussy....but aiight bet
by SuperChump June 13, 2023
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One Direction & Taylor Swift fans. They notice every detail and they are 100% able to figure a murder
Person 1: Omg Directioners are literally FBI, they notice every single detail.

Person 2: Absolutely bestie, for example that Larry thing in Jamaica right?
by ILikeToEatCarrots April 3, 2021
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FBI
FBI
by Succ_Man April 7, 2019
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Non directioner: how did you hack into airport camera’s and leak songs etc.

Directioners: we’re better then the FBI
by Harrystylesisdaddyasf March 17, 2020
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FBI as in the meaning of famous burglars ice cream (Shop)
I went to the FBI to get some ice cream
by ImSoFreakingDuMb June 25, 2020
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