When you're out riding/hiking/climbing and you drink so much on the trail that you and some/all of your buddies have to bivy on the trail in a tent or bivy-sack that is not rated for the number of occupants using it, all of whoom are male and intoxicated.
We got so loaded on the trail that we had to camp out, but J.R. had forgotten his bag, so he asked if he could BivyWack with someone.
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)