look up any word, like blumpkin:
 
2.
A girl or a woman coming from the same parents, roots or spiritual state of mind. A female whom you can count on throughout all time. In her truest sense she is one who will never turn her back on you. She knows you are not perfect and together you do what you need to do to improve. A real sistah is family. A connection with her is based on mutual love, respect and consideration. A sistah has your back and you have hers.

A kinswoman.

A fellow member of a tribe, a club or an organization.

A fellow female who has been through similar situations to what you have been through thus empowering her to truly empathize, support and encourage you on your journey as you do the same for her. She gets it. There is no need to strain & explain to a true sistah.

Part of the grand sisterhood or sistahood.

True friend.

When I need her my sistah is there for me...sometimes I don't even have to tell her what's going on. My sistah just knows.
by LB Lacey December 03, 2005
 
1.
memebase's way to annoy the hell out of people by putting it meaninglessly at the end of every post so then you have to look it up to find out what it is
Hey sistah
STFU
by tehmuffenman October 14, 2011
 
3.
Collective noun. The coolest group of Ravenclaw girls evah. Random, insane. Many are fangirls, others shake their heads at the madness. Also prone to fits of violence. However, always there for one another when the need arises.
I <3 my sistahs. :D
by Cele March 01, 2004