>>712487983The reality is that yeah it's basically like "shit" most of the time. It was (in reference to stuff not in the dictionary definition of the actual substance/slurry of stuff) originally used to describe things that were lacking in distinction (e.g. "The movie is flavorless gray slop masquerading as high art") then to evolve it was picked up by /pol/ which used it in reference to pig feed, ascribing the label of "slop" and other variants like "goyslop" to things made with mass-appeal or generic functionality as being like the literal slop (consumed item) being fed to pigs (people).
It eventually began to shift into mainstream use when /v/ and consequently reddit and youtube started using it to refer to corporatized/overly sanitized media that had similarly generic appeal and lack of distinction, which led to meme culture adopting it and using it as a synonym of shit.