Fein cough

A heavy cough with lots of weird tasting phlegm after vaping for a while.

ever since i started vaping, I’ve had super bad fein coughs

by bababsjjibby April 26, 2024

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FEIN MODE

an unconscious and uncontrollable state of hype resulting from listening to the melodies and chorus of Travis Scott and Playboi Carti's hit song "FE!N."

Friend 1: *plays FE!N*

Friend 2: yo bro, please don't play that. I don't want to enter FEIN MODE.

Friend 1: what are you talking about?

Friend 2: FEIN, FEIN, FEIN, FEIN, FEIN, FEIN, FEIN, FEIN!!

by travisscotts600 June 3, 2024

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Fibonacci fein

An investor who swi does you out your while pretending to be good at math.

I sold her 4 rocks for the price of 1
What a fibonacci fein.

by Can'tgetawinnooooo April 18, 2022

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Feine

Caffeine

I had some caffeine this morning.

by DavidMason April 11, 2019

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Fein

a Fein is someone who always wants the chooch. This especially applies to someone who doesn't have one of their own, so they ask everyone else for 'just one rip'.

Damn, Owen, you're a fucking fein!

Nobody give their chooch to Owen, he's feining.

by I Hate Feins January 17, 2023

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