One who continually pursues his friend's sisters. Will go through great lengths despite complete futility along with a consistent beating.
You've been talking to my sister on facebook, you're following his sister on twitter, nigga you a sister fiend!
by just some guy typin some shit. February 1, 2013

The definition of a Sister of Clive... an older sibling who is ok, but not a lovely as the younger child.
by Joy's Brother December 23, 2020

Kim: "I just fucked Chad!"
Mary: "OMG I totally fucked him last week!"
Kim: "Omg we're like totes Totem Sisters now!"
Mary: "OMG I totally fucked him last week!"
Kim: "Omg we're like totes Totem Sisters now!"
by kushsmoker6969 October 28, 2017

Me: Hey guess who I took home yesterday? I have a new Saddle sister.I rode that Dick for hours last night.
Friend : please tell me its not my ex ? I don't need you for my saddle sister he add to my family he s been around so much its like we should have reunion.
Friend : please tell me its not my ex ? I don't need you for my saddle sister he add to my family he s been around so much its like we should have reunion.
by Stay slow January 12, 2021

by Long Slong Bong Long May 6, 2018

A boy who dates/talks to a girl in an apartment, but after the relationship has ended, proceeds to date/kiss/pursue said female's roommates.
See also homie hopper
See also homie hopper
Roomie 1: I'm so over that fool.
Roomie 2: I made out with him..
Roomie 3: Me too...
Roomie 4: THAT BOY IS A SISTER SWITCHER.
Roomie 2: I made out with him..
Roomie 3: Me too...
Roomie 4: THAT BOY IS A SISTER SWITCHER.
by Piriguetinha May 20, 2016

When you are having sex with a woman doggystyle, you gently slide your thumb into her anus, then say, “I fucked your sister last night.” You then hold on for as long as possible.
Josh was having sex with Brandy, he broke the news of his last week’s infidelity with her sister Britt and had a sister rodeo.
by Nipple Knockers July 15, 2022
