Sister switcher

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

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.

by Piriguetinha May 4, 2016