A girl will put her macbook case on upside down as a sign of being dtf. The apple on the case will face the opposite direction of the apple that lights up so that the two look like they're 69-ing. Bitch be horny.
Guy: Dude, do you think she's in to me?
Friend: Yeah, man. She's got an upside down macbook case on her laptop. Totally dtf. Go mack, bro.
Guy: I think you meanmac!
*High-five*
A phrase referring to the act of shoplifting. Derived from Winona Ryder's 2001 shoplifting scandal.
Kay: "Hey, do you wanna go to Abercrombie after school???"
May: "I thought you couldn't afford their clothes."
Kay: "Well, I think I may be coming down with a case of the Winonas..."
May: "Ohhh, you're BAD. But sure, I'll come."