Something you call someone who thinks they are a genius, but is too stupid to know how to actually spell "genius", and is actually a really dumb person.
That jeanious uses anime for almost every one of her forum responses, so I called her a "jeanious"; and she thought I was actually calling her smart! She is so dumb, she doesn't even know how to spell genius and thought I was giving her props for her forum posts! What a jeanious!
by Red523 January 16, 2019
by natsukagex February 20, 2011