A person who frequently spends time at Starbucks, not to get coffee but just to hang out for lack of anything better to do. Similar to the word mallrat, except it derives from the fact that "Starbucks" spelled backwords and minus the C is "Skubrats".
Eric: There's nothing to do around here.
Ronnie: Let's just go chill at Starbucks - but I don't want coffee, I just want to sit outside it and smoke and talk to the other people hanging out there.
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. PenguinBooks,1992. p. 38)