The traditional outfit often worn by teenage girls from an apartment/flat to a Starbucks. Not in order to impress anyone, rather for the hell of it. Usually consisting of a bikini, with at least some of it exposed in some way, hotshorts or a short skirt, and if it is below freezing outside, perhaps some tights and a light jacket.
"Oh my gosh I am CRAVING a tall caramel latte right now. So badly."
"Oh em gee, totally! I would kill for a grande hot apple cider. Go get on your Starbucks outfit!"