syfsau 

An abbreviation for the phrase "Shut yo(ur) fʊ##ing stupid a$$ up". Pronounced "sif-sou"

person 1: Shut up bro yo momma built like the great wall of china if it was all packed together my guy
person 2: Bro you deadass still using yo momma jokes like syfsau bro on god
person 3: Dang, you finna let that slide bro?
person 1: I might have to bro that one was a critical hit my guy

syfsau by telephrotographicallistism March 30, 2024

syfau 

Usually a texted word which means "shut your fat ass up"

yo syfau or I'll slap you silly

syfau by MStang April 22, 2011

Sysau 

Shut your stupid ass up

Bitch if you don't sysau

Sysau by Vert lil uzi March 30, 2020

Syfau 

Shut your fat ass up

Person 1 your ugly
Person 2 syfau!!

Syfau by Kekeisreal7778 August 8, 2021

Syfau 

When yo girl fine

Syfau is used when saying shut your fine ass up

Syfau by Syfau September 19, 2019

Syfau 

Pronounced (Sa-faow) the word originated in 16th century France as a slur against homosexuals. It is derived from the latin root "syph" meaning silence and "ough" meaning homosexual. This term has been popularized in the 2020s as a homophobic slang term due to its appearance as an abbreviation that could mean "Shut your faggot ass up."

Sometimes I really wish you would syfau.

Syfau by LilPedro7007 March 15, 2025

SYFAUN 

Shut yo faggoty ass up nigga

Tania: "Hi Arjun ur super cool"
Arjun: "SYFAUN you're so annoying

SYFAUN by arjubaba May 15, 2025