waffle sister

When 2 friends sleep with the same person.. They become waffle sisters..

Judy and Susie both slept with Joe, so now they are waffle sisters

by Jlyn1011 July 25, 2017

sister liner

When your eye liner isn't identical on both sides so it's like the lines are sisters, rather than twins as they should be.

"We all have to put up with sister liner sometimes, they can't always be twins youknowwhatimsaying" said the annoying YouTube beauty guru.

by LawSuitUp March 12, 2016

dildo sisters

Dildo sisters are two girls who use a double-sided dildo at the same time and have a great time

Damn I heard those chicks are dildo sisters

by Thugbeats801 May 31, 2017

Sister Mom

A mother to one or more children with a best friend who may or may not also have children. They do not live together but can call on each other at any given point to step in. They have complete confidence that other mom will do as great or better as they can.

"Her sister mom picked up the children and took the kids to practice while she was stuck at work"

by MomInDe May 9, 2022

sister-in-law

1. The wife of one's brother.
2. The sister of one's spouse.

My sister-in-law is a good person.

by Elivaldeq November 24, 2019

Hot sister

Saying nice things about someone’s sister

Your hot sister is lesbian

by Mitch McConnell June 24, 2022

Grandma Sister

The most disgusting thing people in Alabama can do, when your grandma is also your sister

man i got with grandma sister the other day, i love her old pussy

by alabamainsest August 2, 2020