igloo sister 

When two females have been intimate with the same male,
When two girls have had sex with the same guy

Girl 1: Omg i had a one night stand with Frank last night
Girl 2: seriously?! I did him last week! now we're igloo sisters!

igloo sister by taylor077 October 14, 2013

Igloo sisters 

When you and home girl both have sucked the same dick

Aye you sucked Jack’s dick too? We igloo sisters now!!

Igloo sisters by Eli12345 March 6, 2021

Igloo Sisters 

Two women who share a common male in their sexual history and are on good terms with one another. The female equivalent of "Eskimo Brothers."

Girl #1: How'd you get the store discount on that skirt?

Girl #2: Oh, the clerk and I are Igloo sisters. We both banged Craig.

Girl #1: Nice pull, lady! *fist bump followed by explosion*

Igloo Sisters by verbalfonders September 22, 2014