Polish sister 

A woman who has shared the same lover as another woman. The bond of a polish sister is unbreakable and undeniable. Most polish sisters are estranged from their other polish sisters but once in a while they will get together to talk about an ex-lover they have in common.

His ex-girlfriend is now my polish sister. I would be okay with this, except for the fact that she had a mean case of Herpes.

Polish sister by HugzandKissez September 20, 2010

Spirit sister 

Two Girls who have strange similarities And enjoy having picnics together. They often have similar shoe choices and enjoy eating vegan food together.

They have so many similarities they must be spirit sisters!

Spirit sister by a very smart pookie June 17, 2014

older sister theory 

the theory that states that all older sisters are hot no matter what

if some girl is ugly and then has a younger brother born
she will miraculously become hot

the older the younger sibling, and the better you know them, the more satisfactory it is to gawk at their sister
especially if the younger sibling is male

if there is a not hot older sister:
1-they have a penis
2-they have a disorder
3-they are bangable at the very least
4-they do not really have younger siblings
5-you are living a lie

guy1-i bet your sister is hot
guy2-how would you know?
guy3-older sister theory, duh.
guy1-id love to watch her in a porno
guy3-rule 34 man
guy2-i assure you there is no porn of my sister
guy1-rule 35
guy2-blasts

older sister theory by handsomevirgil January 16, 2010

Panda Sister 

A term used between two women who have slept with the same guy.

While two men who have slept with the same woman are considered "eskimo brothers," two women who have slept with the same guy are known as "panda sisters."

Maria, don't look now but Brian just walked in with Beth. Looks like somebody got a new panda sister.

Panda Sister by R0LLeR September 1, 2010

Divine sister 

a weird group that has weird spider things **also people asking for blow jobs**

Girl 1: hey have you heard about divine sister?

spider:kdoonf 2iufnmu2iewa

Divine sister by whyamibornmother October 11, 2020

Weed it and Reap Sister!

An alternative to the popular expression "Read it and Weep Sister!", which involves publicly humiliating others with pure fact. The only difference with this one is that you say it to fellow gardening chums while carrying out essential weeding tasks in your garden. The idea being that you foster generally better growing conditions there.

Busily weeding your lettuce patch with a pal on a Saturday morning in your allotment, you turn to this gardening chum and exclaim: Weed it and Reap Sister! (Then Hi-5!)

Weed it and Reap Sister! by frank_bird May 18, 2010

skip sister 

The step sister of your half sibling, OR the half sister of your step sibling.

MIKE: Okay, Honey, this is my skip sister Elaine.

HONEY: I think I am pretty good at this now! Elaine is the half sister of your step sister Sharon, right?

MIKE: Right!

skip sister by Shelly Bozdog June 30, 2006