Top definition
Short for See You Soon.
Guy: I'll be right there
Girl: Okay
Guy: sys
by PhoenixX April 02, 2005
Get the mug
Get a sys mug for your brother-in-law Manley.
SYS aka Synchronize yourself. A politically correct way tell to tell someone to off themselves. Highly effective term to use when you're in class, or in the presence of another authority figure that can get you into trouble , but you just can't control your buring desire to tell some dumb cunt that you cant stand to hear her speak.
Dumb Cunt: " You're from India, you must be fluent in Indian"
You:" Bitch sys"
via giphy
by queensys September 17, 2017
Get the mug
Get a SYS mug for your bunkmate Manafort.
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
Get the mug
Get a sys mug for your sister-in-law Julia.
Suck YourSelf. May also add a D for Suck Yourself Dry; for added impact and shame
"Bro sys, your being such a pussy"
by Johnny Applepen is July 31, 2018
Get the mug
Get a SYS mug for your guy Julia.