Skip to main content
Search Urban Dictionary
Back
Start typing to search.
Searching
...
Dictionary
Store
App
Chat
Blog
Help
Words of the Day
Browse
Add a Definition
User Settings
Definitions by Hepatitis A
Mr. Sister Fister
Share definition
Flag
Mr
. Sister
Fister
is a middle aged man who puts his finger his
sister
’s vagina
That man
looks like
/is a
Mr
. Sister
Fister
Mr. Sister Fister
by
Hepatitis A
January 29, 2018
Get the
Mr. Sister Fister
mug.