So this meme would only make sense in Old High German.
Maybe I put it wrong, but it works even better in modern Germany: “Stuhl” means chair in modern German. The joke/pun is well-known in German: “Darf ich Ihnen den Stuhl zurückschieben?” So unlike in the English version, “Stuhl” literally both means “chair” and “poop”.
I think you missed the
!
: