t-shirt sister

A “t-shirt sister” is a sorority that is inactive or dropped from chapter but still attends social events. This sister claims to have sisterhood but in reality is selective to who they talk it hangout with. This sister wears or claims her letters or chapter when it is convenient for her. This sister will go party in another college but won’t attend a chapter sisters party.
This sister will at times only talk to their line sisters but no one else in chapter.

Sister one: “I didn’t know Maria would be attending the reveal”
Sister two: “ i didn’t either, she wont attend chapter events but she will attend other greek social events”
Sister one: “ thats why Maria’s a T-shirt sister, only wears her letters when it’s convenient to her”