This is an urban term used to imply that you plan to beat a person like there mama. Although, the person saying this phrase is not related to them.
"James shut the hell up before i uncle sister mama yo ass"
worse than ur mom gay and ur dad lesbian and worse than ur granny tranny combined
trevor: yo kyle ur granny tranny
kyle: ur dad lesbian
trevor: no u
kyle: ur sister fister
trevor: *dies instantly sun breaks a piece of*
The TBHK AU where Kou is really sad and a tree kills his sister and stuff.
I have a really bad addiction to it.
“Do you know Tree Sister?”
“No.”
“You’ll know soon.”
appreciate your sister and make her feel good and make her feel special
National Sister day is my favorite time of year
A Woman who is related to Eva and has very big boobs
“Is that Eva’s sister”
“Yeah you can tell because she has massive mommy milkers”
A legendary trio of lionhearted warriors, who used to travel the world putting their fists into anything evil in this world. Many a deadly foes have been done in by their fists. They also loved to partake in the occasional panda gang-bangs
Hide your sisters cause we are gonna Fist 'errr, for we are The Sister Fiiiisters.