sis-sis

A best friend that you can call sis-sis instead of sis. Female version of brobro. Guys can have a best friend that is a girl that you can call sis-sis and nothing is going on or no one is going out.. Normally if you are best friends you can treat her like a real sister. You can love her like a real sister say I love you like you say to a real sister. Basically best friends.

Jason: Wow Chelsea, we have been friends for years now and I proud to call you my sis-sis.

Chelsea: Thanks Jason! Can I call you brobro?

Jason: Sure sis-sis.

Chelsea: Love ya brobro.

Jason: Love ya sis-sis.

by Thekidwhoisakidthatgoestomps January 25, 2011

si-si

a philosopher of sorts. looks into a mirror and will see many reflections.

resembles a chilly philly dip; sweet and TANGY.

yo i'm si-si. LIKE A DAISEY! give me shit and i'll shit on your face. verbal diarrhoea type shit.

by lawren August 2, 2006

Si

Having a sign language rap battle.

Tommy couldn't hear the shit that Warren was signing about him.

by will bitten December 21, 2016

Sis

Short for the word “sister” but also just an answer to any question ever.

Susan: “how was your weekend?”
Janet: “sis...”
Susan: “omg sis what’s the tea sis—spill!”
Janet: “sis!”
Susan “sis”
—and so on and so forth until Antichrist comes and the world is over

by Theworldisflat.edu August 3, 2018

sied

suck it everyday.

perfect for awkward silence moments; a reason for people to hate you for.

person 1: sup foo?
person 2: ....
person 1: huh?
person 2: well um...
person 1: sied nub

walks away

by One Six One February 6, 2008

SiS

Suffering in Silence

Im alone now.. SiS.

by wockh☆rdt January 3, 2023

SIS

Abbreviation for: "Sisters, In, Spirit". Your Best Friend or Bae. Usually used to refer to someone really close to you, someone you spend a lot of time with, like your sister.

Girl: OMG, squad on fleek!
Girl 2: yas, we look #Fabulous
Girl: Yas Sis Yas!

by ChocolateWafflez April 15, 2015