off the land 

When you do it without no help on your own. Basically getting it out the mudd

When I was in jail I had to survive off the land.

off the land by Trelly Trell Productions April 26, 2021

Living off the land 

Surviving on refreshments and foodstuffs from attending various events and meetings, a common practice for engineers at the University of Toronto.

Yo man, I gotta cook some food tonight, I've been living of the land for too long.

Living off the land by K M September 18, 2004

live off the land 

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 da trash-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!

live off the land by QuacksO October 5, 2018