college-age kids who aren't yet mentally capable of making adult decisions. Similar to the usage of the word "tween" to refer to pre-teens.
That boy is the typical adultager... always broke and asking his parents for money; always has an excuse for his poor behavior; never gets his shit turned in on time without someone holding his hand; doesn't know how to take care of his own business.
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)