Formerly referring to there being an adequately-abundant supply of wild food and clean water in a certain area that a human could survive there for extended periods, it nowadays is often a "grim grinds" reference to how wasteful the population in a given area is as a whole, and that a good scrounger could literally find enough edibles and other basic essentials in the neighborhood's dumpsters and waste-piles to sustain himself quite comfortably.
Visiting dude, accompanying his buddy to help scavenge for discarded returnables in a shopping-mall complex: Zheesh, Dude --- look at all these still-perfectly-edible half-eaten sandwiches and pizza-slices just tossed out in datrash-bins! There's enough here to feed an army!
Local dude who's showing his friend around: Ooooh, yeah --- fer sher, Pal! We are a VERY wasteful society --- feller could live off the land around here, 'specially in da summertime when all da tourists are flocking though!
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)