No, and your post disproves it. The term is well older than 4chan and the relevant noun meaning (the "semiliquid food" sense) dates back to 1650: https://www.e

No, and your post disproves it. The term is well older than 4chan and the relevant noun meaning (the "semiliquid food" sense) dates back to 1650: https://www.etymonline.com/word/slop https://www.etymonline.com/word/slop I'm not sure if that encompasses "pig slop" which is what this is really tapping into, but that has been around at least my whole life and I'm older than 4chan too.