Sis

noun
1.
referencing an individual (not gender specific) who is aligned with the ideology of intersectional feminism, gender parity and the humanist approach to gender rights - an anti-exclusionary and future-focused/future-minded approach to combat the current exclusion issues in the zeitgeist for gender rights.

2.
term of endearment to signal solidarity with and/or feelings of attachment toward the individual to whom the speaker is referring.

"Hey Sis, how are you?"

"you just like my Sis ..ill send you her insta so you can follow."

by woahnellie September 10, 2020

Sis

A word used to replace argh when seeing or hearing something disgusting. It can also be used when someone is acting like a bitch or a slut.

Person A: Cow manure is edible and nutritious in India.
Person B: Sis, that's disgusting.

Person A: I had sex with 5 dudes today.
Person B: Sis!

by Thedarklol October 15, 2021

lan si lan yong linsi

Swear word among the chinese/canto/singlish community to describe someone who is cocky/arrogant

Example
Person1: I don't think you can pass your upcoming exams which is due next week. I hardly see you study at all
Person2: OF COURSE I CAN PASS. DON'T LOOK DOWN ON ME! PLEASE!
Person1: Can you please don't be lan si lan yong linsi

END

by jacktan1993 November 28, 2023

biffle sis

Boyfriend's little sister

Just looking out for my biffle sis

by trulybenji September 14, 2022

MattB SIS

MattBSIS

"Hey did you hear about the girl that contracted HIV?"

"Yeah dude wtf, She's not even a teenager."
"Yeah, but she a Thot."
"It was MattB sis, yea"

by MattBoy SIS December 10, 2017

sis code

A SET OF SIGNS INDICATING THE TIME FOR SEX BETWEEN AKINS AND DOLLY INVOLVING THE INTIMATE RELATIONSHIP AFTER HE BROKE THE BRO'S CODE BY SLEEPING WITH DOLLY (SIMEON'S GIRLFRIEND) BEHIND HIS FRIEND'S BACK, SIMEON.

ITS TIME FOR THE SIS CODE, BABE

by geniphakay June 19, 2017

SI

In fanfiction, an acronym for self insert

He wrote a Pokémon SI story

by OrbitalDefinitions April 30, 2024