Sislerfister

When you have a hot glove and fist and girl/guy

That guy is a bad sislerfister its not hot enough.

by Rat exterminator_koltonratface May 14, 2017

Dr.sisterfister

The man, the pope, the doc, the absolute gamer, a madlad thats has 3 monitors and a bunch of stash of anime girls, what a guy, yeah, oh but I have to warn you that he sometimes will ra-

and someone ship him with audiction, idk who, and idk when but...yes its real

Person 1: do you remember his name?, that youtuber I saw earlier in the streets?

Person 2: oh, the one that carries 2 anime body pillow?

Person 1: yea

Person 2: his name is Dr.sisterfister

Person 1: oh thanks

by Proxley the serwofun caretaker April 13, 2020

sisterfister

Strictly, one who indulges in a particular form of incest, using only their hand (see fister. Often used as a term of contempt, and shortened to "sissy" on account of their unadventurousness.

See also brotherfucker.

Your brother's such a sisterfister, you know.

by Lucifer B September 20, 2005

Sisterfister

Adjective meaning an alternative, clean version to Mother Fucker

*joey smacking Sarah on the butt
Sarah - "Ouch you sisterfister"

by Hink68PMMF October 25, 2017

Sisterfister

its the female of rare species called brofister, it was discovered in youtupia jungles at 2017 by the famous scientist felix kelberg pergananet

and always sisterfister!!!!

by RoloxX September 2, 2017

sistersister

really cool actrises

twins

by joanna July 2, 2003

sistersister

when two girls say the same thing at the very same moment.

person 1:person2:"god"

by xtyne February 6, 2003