Okay kiddo, do you know what a joke is? It's something that makes people laugh or smile because it's funny or silly. Well, sometimes people make jokes by misspelling words on purpose. This is called a satirical misspelling.
For example, let's say someone writes "I luv u" instead of "I love you." They didn't actually forget how to spell "love," they did it on purpose to make the sentence sound funny or cute.
Sometimes people also use satirical misspelling to make fun of something or someone. For instance, if someone wrote "I cAn't BeLiEvE yOu BeLiEvE tHaT" instead of "I can't believe you believe that," they might be poking fun at someone who they think is being silly or gullible.
Overall, satirical misspelling is just a silly way of playing with words and making jokes. It's not meant to be taken seriously or as a way of insulting someone.