Top Definition
When someone is gay or lesbian that you never would have thought to be so because they hid it so well.
Boy was I shocked to find out that ( ) was gay. I've known him for 10 years. Man he was definitely a closet sleeper.

I have been lusting after ( ) for years just to find out she was a closet sleeper. What a tease!
by Silkysmooth October 27, 2012

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