Top definition
A mixture of sister, friend, aunt, or a cousin. This term is commonly used as the shortened version: "Sis". The male version is Brofunsin, a mixture of a brother, a friend, an uncle, and a cousin.
-Hey, Sisfrausin, this definition is pretty nice!

-Should we like it?
-Definitely!
(I'm sorry about that)
by EthnLex June 29, 2018
Get the mug
Get a sisfrausin mug for your guy Manley.