Within the context of music, the term "sus" refers to suspended chords — cases in which the third of a chord is replaced with a perfect fourth or major second.
Person 1: "Hey, what the hell is a 'ඞ', and why are you using it to label your sus chords?"
Person 2: "amogus"
Person 1: "We're cutting you off."
Person 2: "amogus"
Person 1: "We're cutting you off."
by Aqxer June 7, 2021

Person #1: Bro someone just vented right in front of us!
Person #2: oh my god, me when the the the me when the is sus!!!
Person #2: oh my god, me when the the the me when the is sus!!!
by lmaolmao3500 February 3, 2022

An acronym meaning "Sex upon sex." This term is popularly used in the game Among Us, where the main objective is to find a murderer, by splitting up and do your jobs. Whilst alone, players are able to have sexual intercourse. If the player has done the dirty with every player, they are deemed "Sus"
Orange: i was with red earlier and he was acting mad sus
Green: yeah he was behind me doing "tasks" and he was sussy
Green: yeah he was behind me doing "tasks" and he was sussy
by JoeBoner1998 April 13, 2021

Susislife
by PUSSYLICKER696969696969696969 September 3, 2021

A term used by straggots to either-
A- say suspicious but shortened
B- Say someone is acting gay(which isn't a problem)
A- say suspicious but shortened
B- Say someone is acting gay(which isn't a problem)
by i listen to girl in red. October 28, 2020
