Thank you based Internet autist for doing the legwork and sharing your obsession of lexicography and cryptography 🩵
I think your initial hypothesis is correct, that the author simply pasted an English ~~word~~ phrase into an English/ASCII to Hieroglyphic converter, with the second word being Angry, and shit out some hieroglyphics.
Ironic, considering the punchline of the joke
Crazy how the description of a painting by an art critic could now be used to recreate the painting