eskimo sibling 

A general term used for a man and a woman who share or have shared sexual partner(s) of either gender

As Tina tells Ron about how bad Tyrone was in bed, Ron responds, "My experience was quite the opposite."
They giggled into the night about being eskimo siblings.

eskimo sibling by 2tyronefers April 14, 2014

eskimo sibling 

When two people have had sex with the same person, but not necessarily each other. They can both be male, both female, or opposite sex.

"Hey Jill, I made your boyfriend Bill my bitch in prison."

Jill: "Oh cool, I guess that makes us eskimo siblings!"

eskimo sibling by KateMinus8 May 3, 2014

Eskimo Siblings 

2 partners that have had intimate relationships with the same partner.

Hey that was an awesome orgy! Lol, Were all Eskimo Siblings now!

Omg we are eskimo siblings, we both hooked up with that guy/girl.

Its so awesome to date an eskimo sibling

Eskimo Siblings by Julianking February 6, 2025

Eskimo step-siblings 

When you and a buddy wank off to the same person. Derived from Eskimo siblings.

Brian and I are Eskimo step-siblings through Michael from HR

Eskimo step-siblings by Justclowntingz May 14, 2020