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short of "shut your fucking mouth up" if it means anything.
usage is like stfu, "syfmu you noob"
syfmu by gezz June 2, 2008
Words you can keep
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
Related Words
syfmu syfm syfau Symfuhny Syfu stfmu SYFFUF Symun Sofmur syamula
SYFFUF is short for "Shut your fucking face, uncle fucker", a commonly used phrase in the USA. It was introduced in 1890 by Pope Gregorius XIV but gained popularity when Matt Stone and Trey Parker used it for a song in their popular television series "South Park".
Aunt: "Bob, you suck!"
Bob: "SYFFUF!"
SYFFUF by Burn666 January 17, 2008
Shut yo momma up.

Usually when someone says something gay, retarded, or you just don't give a fuck about what they're saying.
Person1: Aye bro, Twilight is not that bad of a movie.....just saying

Person2: Symu !

Person1: OMG Brian goes out with Jennie now?! What a douche, going out with that tramp. I'm so gonna so kill that slut with her--

Person2: SYMU!!!
Symu by Mr.Reman September 10, 2011

SYFUMAWIFY 

Acronym for "STICK YOUR FINGER UP MY ASS WHILE I'M FUCKING YOU"
Originates from the band Messengers from the Sexual Frontier
"Thurman Jane, you know I'll always love you
I'll do anything you want me to do
Whether it be sex for money
Thurman, you'll always be my honey!
Whaddya want me to do, Thurman?!
AHHH
WHADDYA WANT ME TO DO?!
AH WANT YOU TO
STICK YOUR FINGER UP MY ASS WHILE I'M FUCKIN' YOU
SYFUMAWIFY"
SYFUMAWIFY by Kate Castillo December 29, 2005
Shut your fucking face up.
<CraBYbebeq> u WÝLL die while u r sexing and speaking abt SEX...omg GET LOST THE WORLD!!
<Requiett> Syffu.
syffu by Requiett November 13, 2004
Taken from the name boys name Simon. It is said in a deep voice & held for around 4 seconds while dropping your lower jaw to perceive the perfect tone.

If you were saying it, it could be heard as : "Symunnnnnnnnnn"
Look it's Symun.

Symun the great.
Symun by Lanie Bee January 31, 2008
More from Urban Dictionary
West Midlands slang word for rockers, bikers, greasers etc. In the late 1980s it was used by the UK music press to refer to a specific scene centered around the bands Pop Will Eat Itself and Crazyhead. The term never found favour with readers of 'the inkies' (Sounds, Melody Maker and the still extant NME) and was soon dropped. Now often used in predominantly working-class areas of the midlands and the north to mean someone who listens to rock-derived music and/or dresses in a manner that suggests they affiliate themselves with rock music of some kind.
Some grebo passed with Sabbath playing on his stereo.
The Poppies are at no. 17? God, a grebo band in the charts!
They're playing nu-metal now, bloody grebos!
grebo by cactuscat September 15, 2006
Word of the Day on August 24, 2026

TikTok Farlands

TikTok Farlands is a term to refer to videos that you see after scrolling for a long time. These videos can potentially be disturbing, or weird. Said videos can also have low likes, or low comments.
“I reached the TikTok Farlands bro”
Word of the Day on August 23, 2026

mormon assault vehicle

another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."
mormon assault vehicle by KVRX January 10, 2005
Word of the Day on August 22, 2026

Shakira Law 

A version of "Sharia Law" that Reform Ltd supporters tend to refer to, often by mistake.
Richard Tice of Reform now lives in Dubai, under Shakira Law, although telling Brits that we should worry about it
Shakira Law by Reformltd February 16, 2025
Word of the Day on August 21, 2026

Overstand 

To understand a topic or statement to the highest extent.
Leroy, after being told the tenth time by his sister, did overstand her idea of robbing the 7-11.
Overstand by Elf Eater March 23, 2003
Word of the Day on August 20, 2026
A map that mostly tells you where everything is
Friend 1: Follow me there is a player nearby
Friend 2: How do you know?
Friend 1: Minimap
minimap by LeWord January 13, 2015
Word of the Day on August 19, 2026
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