Si

It means special interest. Another term for favorite.

Person 1: Yo Bungou stray dogs is totally my si.

Person 2: Me too bro, me too

by lil_peep_ enthusiast March 19, 2025

Si Wei

The ultimate hydro homie. He will drink your water if you're not careful

He's out of water already? His name must be Si Wei!

by wahseh November 22, 2021

si min

the most perfect funny amazing girl any guy could ask for

"how i wish i was si min"

by jvor November 24, 2021

Period sis

An eloquent expression of approval, generally used by by young adults to display agreement with a controversial or contentious statement.

Most people say Tom’s mom is ugly but I think she’s hot af.

Period sis

by Chessorganist June 2, 2023

Sis-Gender

Sis-Gender n.
Sis (short term for sissified) Gender
A grown man acting like an adolescent girl.

Bro, D. is so sissified acting like a 14 year old girl.
Dude I know, he's a Sis-Gender

by Z-man 69 June 28, 2023

si shuen

she is very slay slayer than yrmum

si shuen is as slay as janelle

by adel (joke) March 16, 2023

SI

Short for Survival Instinct - the ability to know what to do to stay alive.

His SI stopped him from committing suicide.

by Reality Unearthed March 24, 2023