[SIHS]

Song Infected Head Syndrome
When a song gets stuck in your head and you can't stop the silent singing/beat even though you really want to.

SIHS...You take the good, you take the bad, you take it all and there you have the facts of life...

SIHS Love me, hate me, say what you want about me, but all of the boys and all of the girls are begging to if you seek Amy...

by Mrs. Peen April 29, 2009

sih

The female version of the word bruh.
It is used when someone is trying to say "bruh", but to a female. It would be odd if they called them "brother" or "bro", so the word "sih", based off of "sis" and "sister", is used.

Mary: I swear on the existence of the universe that Elon Musk is my uncle!
Garett: Sih.

by herobrine049X February 10, 2023

SIH

There term given to all the lovely people

all you lovely people are SIH's

by college_boy August 28, 2008

Sihs

The worst fucking school all they are worried about is catch ur vape and smoking the fucking shit out of it and then give you iss or OSS so yeah fuck sihs

Shitty people go to sihs

by Mayo_man_69 December 6, 2020

Sih

The he/him or she/her of a non-binary person

Sih was in the mall today with Sih’s friends

by Alligatorkidyt July 31, 2021