The phrase that's nasty has long been used online as a blunt reaction to anything gross, weird or disappointing, and short clips of the line circulate widely as meme audio because the meaning needs no explanation. Creators lift it into reaction videos, gaming highlights and short-form edits where a single disgusted response says more than a long commentary. Its staying power comes from that versatility: it works for food, fails, fashion and awkward social moments alike, and its very short length makes it easy to slot into fast-paced edits without slowing them down.