1 definition by KateMinus8
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!"
Jill: "Oh cool, I guess that makes us eskimo siblings!"
by KateMinus8 March 25, 2014