(Noun) The one drunk girl at the party who throws herself at the first guy she sees.
Guy 1: "Dude, I saw Ashley at Mike's party! Showed up drunk as hell, made a beeline towards the first guy she saw! Started grindin on him immediately."
Guy 2: "Fuck, man. I knew she was a bit of a thot, but she's a straight - up sling thot."