I’m reminded of the Philip K. Dick story ‘Counter-Clock World’, set in a world where time has reversed and begun to move backwards. Patrols roam around cemeteries, listening for heartbeats so they can exhume the once-again living.
“People do not eat, but instead consume “Sogum” anally through a pipe, and later “plop” out food orally, which is done in private, due to its ‘shameful’ nature. As for smoking, cigarettes are no longer smoked, but the smoke instead blown back into them, making them grow back to normal size (this also clears and freshens the air). “Goodbye” and “hello” have reversed their order within standard greetings, and “food” is used as a drop-in replacement for the expletive “shit”.”