2 definitions by Tahun

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!
by Tahun June 20, 2011
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When two best friends get drunk alone in two different parts of the world and have drunk conversations.
Kia: I need a drink or two and I have no one to get drunk with except alcoholic uncle.. Wanna get phone drunk with me?
Lyra: Hell yea!
by Tahun June 24, 2011
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