Blood Sister

The female equivalent of a blood brother.
Blood sister can refer to one of two things: two females related by birth, or two or more women not related by birth who have sworn loyalty and friendship to each other. This is usually done in a ceremony, known as a blood oath, where the blood from small cut is mixed and drunk.

Much more than just a Best Friend, Blood Sister is your hetero life mate in a non-homosexual way.
Blood Sisters share anything and everything; they have no secrets from each other. She is number one in your life, despite significant others and family. Hell, she IS your family. A Blood Sister is your other half.

Also known as Soul Sister.

Person you are so close with you have "inside" jokes with and code words. Person that you can just look at a certain way and knows EXACTLY what you're talking about.

Person no distance can separate you from because you're close in heart.

Tahun: Let's cut our hands and mix blood so we become blood sisters like in Winnetou!
Keliona: Yea let's do it!

Blood Sister by Tahun June 20, 2011

National blood sister day 

National Blood sister day

Well this day is national blood sister day this means you are celebrating of having a wonderful beautiful caring sister that you share blood with she always makes your day and sometimes makes you cry once in a while but you know you guys are still sisters and you love each other until the end of the earth

National blood sister day by Maddie_love September 7, 2019

Blood sisters 

Term used when two girls (well, obviously) cut themselves and mix their blood. Can be drinken or just pressing the cuts against each other.

I acquired a blood sister on Feb. 18.

Blood sisters by Charlie Storm April 21, 2005

Blood Sisters 

When more then two girls have that special present from mother nature called the period on the same day and share the cramps and the mood swings together.

Charity and Hilary hung and found out they were Blood Sisters!

Blood Sisters by Alex Haaaas March 9, 2009

blood Sisters 

Blood sisters is a group of five girls who loves each others nd they are always together no matter what.

Do you have a blood sisters?

blood Sisters by takwaoumi June 11, 2018

blood sisters 

two lesbians having sexual intercourse while both on their menstrual cycle.

The two blood sisters better not stain my sheets!

blood sisters by Agent Filth and Little Bill November 7, 2010

Blood sisters 

The special ritual of 2 or more close girl friends that become so close that their menstrual cycles syncronise. Once this stage is complete the girls become blood sisters by sissoring each other and exchanging their monthly discharge

Amanda: Hey Helen we've become so close over the last few months that I think we should become blood sisters.
Helen: That sounds amazing I'm due on in a few days
Amanda: Me too!

Blood sisters by DonBay May 2, 2019