"Kentucky sober" refers to the physical and mental state of a person after they have been to Kentucky Fried Chicken and entered a food coma that was so intense they got meat sweats. This results in them being "Kentucky hungover" the next day until the effects start to abate and they become "Kentucky sober".
Sorry, I can't hang out today I was at KFC last night and I'm not Kentuckysober yet...
I went to the rave this weekend, and the guy I was making out with asked me if I was just drinking tonight. I could tell he was about to offer me cocaine or something, so I let him know I'm Kentucky sober.
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)