cous-sis

A cousin so close and tigh with you, they're like a sister. They always have you're back and you can tell them anything.

The sister you never had

"Do you have any siblings?"
"No but I got a Cous-sis"

by s_nizzy April 29, 2015

Lou Si

Used by the common 马丢 or a call for assistance for a teacher

He then cried: 'Lou Si. I don't know how to read this

by OMEGALULXD January 11, 2021

si futz

Pig pussy in pa dutch

I would like to order some si futz and turnips

by Scuba Steve 1986 January 12, 2021

sis shuffle

the sis shuffle is what you do during the add/drop period. when a class is coming up, you drop it on the sis (student information services) website and add another class that met yesterday, prolonging the beginning-of-semester itis.

"are you coming to math?"
"fuck that, sis shuffle"

by fat mels May 09, 2010

spooky sis

a girl friend or girl who is in the October/spooky spirit

Dalilah loves Halloween. She is such a spooky sis

by dalilahspookysis October 28, 2017

crissa's sis

a christmas cake

crissa's sis is a christmas cake

by anonktk January 29, 2019

sis science

Feminine based pseudo science. Common beliefs with no real basis in science but are practiced and passed down like sacred old wives tales and "chick wisdom"

Also see bro science

My mom always told me that emu oil makes your hair grow. I have no idea if that true or just some old sis science.

by portiapotter September 08, 2020