syau 

Shut Yo Ass Up, when someone says something you either
1. dont wanna hear.
2. extremely stupid.

<dude> dude, you suck
<guy> your mother sucks
<dude> SYAU!

syau by NickBeam January 21, 2008

SYAU 

Shut yo ass up!

Dude, SYAU before I get the belt and slap your ass with it!

SYAU by Minecraft1238 February 2, 2019

SYAU 

Shut yo ass up

Me: This boy is so ugly..
Her: Girl he's cute! It's not about looks, it's about personality.
Me: Syau.

SYAU by Shaya CUH June 24, 2020

syau 

syau is an abbreviation for “shut yo ass up.” made by Arianna F.

“syau, you sound slow as hell.”

syau by ibabygirl June 7, 2018

syau 

another way to say “real” or “so true.” it basically means that you’re agreeing with something but more fun.

can also be sarcastic.

“she’s so pretty!” “syau girl!! she’s gorgeous!!”

syau by lucylicious January 26, 2023

syau 

A sentence invented by the one and only Trick2g syau means "Shut yo ass up"

Enemy: "ur bad"
you: "syau"

syau by Htennek73 November 24, 2018

SYAU 

SYAU is an acronym for Step Your Aim Up. Most commonly used in the Call of Duty community as a way to tell a fellow player their aim sucks, or step their game up.

JAMES: Hey Jake 73 hit markers later and that Christmas noon punched you to death.

Jake: CMON MAN WHO THE HELL DOES THAT? THIS GAME IS TERRIBLE. GODDAMN CHEATERS. GIT GUD SCRUBZ!!

James: SYAU Jake, your bad.

SYAU by Xcruciate May 4, 2016