(slang, noun, Among Us):
A dig at a player that is acting suspicious, but is otherwise definitely not The Impostor.

This “Crewmate” player may be failing to complete their tasks, accusing the wrong people, or not voting in line with the majority. Although they aren't necessarily killing anyone or trying to lose, their chaotic playstyle makes them seem like a mini-Impostor, or if you will, a “third Impostor.”
Impostor A: Charlie was the greatest 3rd Impostor I could've ever asked for.
Impostor B: I can confirm, greatest 3rd Impostor.
Charlie: Drumsy didn't even have anything on me, and he was ready to vote me off because I was being so ridiculous!
by Dizzota October 8, 2020
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That one guy that's always you're suspicious friend and very Dangerous
Blue: red is my friend he is not sus guys!
10 minutes later..
Blue: RED WHY DID U KILL ME!! I THOUGHT YOU WEREN'T THE RED IMPOSTOR!
by im not sus im red April 6, 2021
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A person who is not the impostor in Among Us but they accuse others and ultimately lose the game for the crewmates
Bro: Why are you accusing me I did Med-Bay scan. You’re literally third impostor
by 🅱B🅱 September 16, 2020
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A cat who is posing as Bramblestar, possessing Bramblestars body, who is not actually Bramblestar.
Bramblestars Impostor had finished exiling the codebreakers.
by a dumb donkey January 13, 2021
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A person, usually male, with hair-plugs and pectoral implants that places a workout towel on a machine and proceeds to complete one slow, very light set on a different machine with exaggerated form. Then, the same person will walk around the gym for about 15-20 minutes before their next set, hoping to see someone they know that also would rather socialize than workout. They wear very baggy clothing to hide their lack of proportion, especially in the leg area.
There goes the workout impostor, he's only done 2 sets the entire time I've been here, and I'm finished my workout!

That workout impostor would rather socialize and fix his towel than get results.
by dan davidson March 16, 2011
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When you see that fucking impostor everywhere
Person with impostor syndrome: GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD GET OUT OF MY HEAD
by Joker the Fortnite God July 1, 2021
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