S 

Short form for the word "Yes" used by lazy fucks who don't want to type a three-letter word. Can be considered as the successor of "K" which is short for "Okay".

You: Wanna play Minecraft?
Your lazy homie: S

S by Peepeepoopoo from urbdic January 11, 2021

:-S 

confused
when you are confused

(in a im convo)
p1:am i sexy
p2::-S

:-S by GrEaVsI April 2, 2005

S!

Military Chat Expression for "Salute". Often used in Online Multiplayer games.

Player1: "S!"
Player2: "Yes Sir, S!"

S! by NYF February 15, 2004

:'S 

an emoticon depicting a sad snivering or about to cry face.

i fucked up on my test :'S

:'S by apr1c0t October 26, 2003

S** 

Something everyone in Urban Dictionary can’t stop talking about

I pressed the s key and the second thing that popped up was s**!

S** by yeltsA kciR May 27, 2021

S 

Short for soulmate; the man/woman that is "the one" for you and will forever have the other half of your heart and soul.

soulmate

S by amsterdam22 August 19, 2009

S 

'S' is commonly used at the end of a message to represent sex. Similar to 'X' in the UK (kisses) and 'Xs and Os' (kisses and hugs) in North America, 'S' could be used between two people of the same sex without being regarded as homosexual. Usually more Ss means more intense sexual tension between the two parties.

Adam,

Long time since we've chilled. I heard you are joining us in Montreal!! It's going to be EPIC!

sss

James Stevens

S by NJ Zed January 8, 2011