When someone is being idiotic, and they're being shitty about it, they're being shittiotic.
'Man, that guy in class today was so shittiotic... he was totally wrong, and he knew it! He probably only kept arguing because he likes the sound of his own voice.'
Shittot describes something intensely possitive, similar to such words as 'amazing', 'incredible' and 'vagina'. Although commonly thought to be negative, it must not be confused with the word 'shit'.