su

Shutup, a cleaner version of STFU (Shut the fuck up)

<Hex> I had such a dirty shit just now!
<Terran-Ghost> SU, for the love of god SU!

by Terran-Ghost June 3, 2003

sus

when two people of the same gender (typically guys) act like they are dating when they're not.

"bro, Chad and Luke have been acting sus recently"
"nah, dude, they're actually dating"

by barf flavored soda December 15, 2021

Sus

A sketchy/shady person who can't be trusted.

That Foo was acting all sus.

by Minor2supreme May 17, 2016

Su

Usually seen in Snapchat Su in slang means Swipe up and or Shut up
It's seen in. Texting not speech

Example "Su who is this "
meaning, swipe up who is this?

Or
Person 1: did u see Madison's Story??!
Person 2: no, show me
Person 1 k, I'll send u a screen shot
Person 2: SU! SHE GOT A NOSE PIERCING??!

meaning

Shut up! she got a nose piercing?!
Shut up in the way of saying, No way or Omg really?!

by Wizz32 October 6, 2019

Sus

Being suspect. Doing or being sketchy or being scandalous.

Eric is sus by not paying gas money and texting other girls.

by Sidd Poot June 24, 2013

Sus

Someone who is acting rather suspicious, typically referring to someone who is straight acting gay.

I don't know man, what you said to me was sus

by Z change xxx March 28, 2022

Sus

Suspicious

Red is Sus

by the greys-sloan hospital October 3, 2020