1informal Giving the impression that something is questionable or dishonest; suspicious.
- ‘it's a little sus that he seems to know exactly how to play this game’
2British informal, historical Relating to or denoting a law under which a person could be arrested on suspicion of having committed an offence.
- ‘the sus law’
nounmass nouninformal British
Suspicion of having committed a crime.
- ‘he was picked up on sus’