A girl who pretends to go out with a gay guy so that people think he's straight.
Jim: "So did hear that Paul's got a girlfriend? I thought he was gay."
Sam: "Oh, he is. She's just a Walk-In Closet so his mom doesn't find out he's gay."
November 13, 2008 Urban Word of the Day
A woman who is beard or disquise for a gay man that has not come out.
Tad doesn't want his boss to know that he is gay, so Julie is totally being his walk-in closet.