Used humorously to describe a situation that started normal, fun, or chill (like a BBQ with friends), but suddenly went totally out of control, chaotic, or unexpectedly sexual. It plays on the rhyme between cookout (grill party) and cock-out (slang for male genitals being exposed).
"We thought it would just be burgers and beer, but after midnight… it turned from a cookout into a cock-out."
"The meeting was fine at first, but when everyone started shouting, it turned from a cookout into a cock-out."
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)