DSTS is where a person is dumb and stupid, either by doing dangerous things, being rebellious against law (notably drinking underage), or generally having limited mental capacity.
Person 1: Dude I tied myself to a shopping cart and had my friend push it while running.
Person 2: Sounds like you have Dumb Stupid Teenage Syndrome.
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)