n00n
A know-it-all who thinks they're the best and treats everyone else like they're clueless.
My mom said I'm a n00n because I told her the sky is blue and she didn't know that.
My friend's dad is a n00n. He said my friend is 'a kid who talks too much.'
I called my teacher a n00n because she said I was 'a student who doesn't listen.'