SIYFH 

It refers to an old Navy Chief's curse aimed at the officers. It is an acronym for Shit In Your Flat Hat

The Chief signed the letter with a flourished SIYFH and a note to kick some ass.

SIYFH by J T Kelly November 17, 2006

Siyah 

The best person ever. She is funny, caring, and can make the best out of a bad situation. Siyah likes all things like anime, alt music, and skating. Everyone needs a Siyah in their life, and appreciate her.

"Woah that girl is so based, her name must be Siyah.

Siyah by ovomaddy February 13, 2021

siyah 

sir, friend, good friend, my friend, bredda, buddy, mate, borther, my brother, my close one

keep it real siyah

siyah by sam.r September 4, 2009

Siyshore 

She will be a famous streamer in 8 years. She will play with people like sykkuno, corpse and Valkyrae and might appear on the dream SMP.. soo watch out

She’s cool. Siyshore

Siyshore by Siyshore xox March 2, 2021

Siyha 

My name. I added my name because its not here. Siyha means a non white name for a non white person.

Her name is Siyha, she is brown.

Siyha by Sighs...ah November 2, 2021

syfh 

Shut your fucking hole.

<n00b> OMG!!111 IM SO KOOL!!111
<Oldbie> SYFU

syfh by Awoir July 17, 2004

SIYF 

Search Is Your Friend

Congrats. You are the 6 millionth person to have posted that question. SIYF.

SIYF by rumsponge February 22, 2007