Two bestfriends who even though they fight will be sisters for life. When life gets tough they go through it together. They share everything with each other even when its hard to say. When one has a secret the other is the first to know. They have each others back and they laugh over stupid things. They share inside jokes no one could ever understand. If one is down the other is there to make them feel better. Always there for each other NO MATTER WHAT. Someone you will love forever. <3
Steph: hey sis how are you?
Emily: horrible today has been the worst day ever.
Steph: can you at least smile?
Emily: no its practically impossible
Steph: smile never stop smiling, smile your heart out, smile and turn something bad into something good, if you cant, ABSOLUTELY cant then i will be there, i will cry with you and I will smile with you, i wont let you down as long as im alive, i wont let him.... Or anyone change who you really are you are perfect in every way dont change who you are and never NEVER stop smiling :) <3
Emily: (: thanks sis <3
Steph: sisters forever?
Emily: sisters forever
Emily: horrible today has been the worst day ever.
Steph: can you at least smile?
Emily: no its practically impossible
Steph: smile never stop smiling, smile your heart out, smile and turn something bad into something good, if you cant, ABSOLUTELY cant then i will be there, i will cry with you and I will smile with you, i wont let you down as long as im alive, i wont let him.... Or anyone change who you really are you are perfect in every way dont change who you are and never NEVER stop smiling :) <3
Emily: (: thanks sis <3
Steph: sisters forever?
Emily: sisters forever
by Thenames_hitt January 27, 2013

Sister at heart is someone so close to you, that you call them a sister to you, preferably to girls. Someone you are never afraid to talk to, someone that all your pains and hurts you go through , your sister at heart. Understands.
by Canvastude October 12, 2019

Mother Superion: ''where is Ava, she is supposed to be training?''
Sister Camila: ''she's with Sister Beatrice, but I don't think they're training''
Sister Camila: ''she's with Sister Beatrice, but I don't think they're training''
by YazzHands December 17, 2022

The female equivalent of "Tunnel Buddies". When two females have had coitus with the same male ( not necessarily at the same time).
Stav: Omg did you hear that Shay and Maya both had sex with Harel!1!1!1
Tamar: So are they Shlong Sisters?
Stav: Yup!1!1!
Tamar: So are they Shlong Sisters?
Stav: Yup!1!1!
by shlongsisters May 7, 2021

"hey girl, you know, we cock sisters. I was with that fool years ago, before you ended up with him."
by Spellbound July 3, 2014

by Omar M April 4, 2005

Similar to the Brother Zone, except to a woman. Pretty much, the guy/girl you like comes out with: "I like/love you like a sister". This can be done by men or women.
Chick 1: Hey sweetie, how did it go with Dan?
Chick 2: Shit. I just finished pouring out my soul to him when he tells me that he loves me, but only like a sister.
Chick 1: Shit. Sister Zone sucks.
Chick 2: Shit. I just finished pouring out my soul to him when he tells me that he loves me, but only like a sister.
Chick 1: Shit. Sister Zone sucks.
by I Hate Zones November 5, 2009
