It's a clean version of "purple drank" and "sizzurp". This drink is full of vitamins and stuff to help you naturally relaxe so you dont have to use promethazine since that is a bad drug.
John: Hey man wanna drink sum purple shit?
Mike: No man I hate to be leanin off that, I would rather drink the clean sippen syrup.
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. Penguin Books,1992. p. 38)