Often used as a term for a role you never ever get in the hit game Among Us, to be a killer in Among Us.
- Yo man, you sus.
- Bro it's not me I'm not the Impostor, I'm a crewmate like you.
- No, you sus.
im·pos·tor
/imˈpästər/
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noun
noun: imposter
a person who pretends to be someone else in order to deceive others, especially for fraudulent gain.