Kek is an online term with similar meanings to LOL or haha, used especially by gamers. Since the 2016 US presidential election, the Egyptian god Kek, portrayed as Pepe the Frog, has become a symbol of the so-called “alt-right.”
—from
https://www.dictionary.com/e/slang/kek/
Another great Brian Cates Twitter Thread, still building at the moment but again, very interesting!
https://twitter.com/drawandstrike/status/905496719818989569
Complete History of Kekistan
https://www.youtube.com/watch?v=J934YnNMuQA
Thank you! Now I don’t feel so ignorant.