during a really hot session of sex, you sweat. however, this is not the kind of sweat during a normal workout at the gym...this is sex sweat. sex sweat is sweat that glistens off your body and looks super sexy. get that glisten refers to having a passionate night of sex where you "get that glisten" of sex sweat.
Rachel: I hung out with him last night.
Lauren: Did you guys have sex?
Rachel: Well I was tryin to get that glisten...
Lauren: Atta girl!
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