The word "sus" is a slang abbreviation derived from the word "suspicious." It is often used in casual conversation and especially in online gaming communities to describe someone or something that seems untrustworthy or shady. If someone is acting "sus," it means that their behavior raises doubts or concerns about their intentions.
The term "sus" originated from the word "suspicious." It gained widespread popularity in the gaming community, particularly through the game "Among Us," where players use the term to call out others who they believe might be deceiving or lying.