Top Definition
Short for See You Soon.
Guy: I'll be right there
Girl: Okay
Guy: sys
by PhoenixX April 02, 2005
This has quite a few meanings.

1: (My Favourite) SHUT YOUR SHIT!

2: Shoot yourself.

3: Slap yourself.

4: See you soon.

Example for the 1st meaning.
Tim: Dude omg i love cod man.. it's like the best game everr!!! i pr0 snipez omg!!

Simon: Dude, SYS.
by Vope July 01, 2010
Save Your Soul. When somebody close to you is either being kidnapped, sold to the devil, or basically in a really bad situation (as per your POV). Especially convenient to use in texts. You can tell someone to save your soul as either telling them to run away or for good luck.
Lana: Oh my god! I have Ms. Cripps for next period. I bet she is going to have a pop quiz! SMS rn
Mindy: You need to SYS bae! But I have a history quiz after lunch... I don't even know what it's about! Help Me!
Lana: Ahhhh! SOS!

*Kidnapping Situation*
Davy: Go SYS! We don't have time! I'll distract him while you run!
Gracie: But what about you?
Davy: Just Run! *whispers* SMS....
Gracie (hearing him): *whispers* SOS
by iangel.ily November 17, 2014
Shoot Yourself
Becomming more popular than EYL (end your life) and KYS (kill yourself)
Guy 1: "Dude, you're fucking dumb EYL"
Guy 2: "Ohh look over there, a gun SYS"
Guy 1: "Ok, fine I will"
by kanewtz December 03, 2008
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