sus
/sʌs/
Very CommonSuspicious or suspect. Something seems off, untrustworthy, or questionable.
Exploded in popularity because of Among Us but existed before it. Now used for everything from genuine suspicion to lighthearted teasing.
Real-world examples4 examples
| # | Example | What it means | Source |
|---|---|---|---|
| 01 | Why is he being so nice all of a sudden? That's sus. | Sudden kindness is raising suspicion about their motives. | x, 2023 |
| 02 | This website wants my SSN to enter a giveaway. Mad sus. | The website is obviously a scam. | reddit, 2024 |
| 03 | Bro left the group chat right after we started planning. Sus. | Leaving at that specific moment seems suspicious. | instagram, 2023 |
| 04 | I saw him vent. He's sus. | Directly referencing Among Us gameplay where venting is proof of being the imposter. | youtube, 2021 |
Use it when
- Someone's behavior seems off or untrustworthy.
- Something seems too good to be true.
- You are playfully accusing a friend of being sketchy.
- Something just does not feel right and you want to flag it.
Do not use it when
- You mean someone is outright lying with proof.Use “cap” instead.
- You are making a serious accusation in a formal context.
- You want to say someone is weird in a non-suspicious way.
Variations and related forms
Sus vs cap
sus
Sus means something seems off or untrustworthy. You are not sure yet.
VS
cap
Cap means someone is definitely lying. You have already decided.
Origin and context
Short for suspicious or suspect. Existed in British slang for decades but exploded globally in 2020 due to the game Among Us where identifying the sus imposter is the core mechanic.
- First seen
- 2020
- Confidence
- high
Cite this page
Use this stable URL to reference the entry.
https://slang.fyi/susUpdated: 2026-08-25License: CC BY 4.0