Babeling
A person who talks nonsense and thinks they're smart. Always fails. Sounds like Bab-ell-er. Babeling is also a word.
My teacher is a Babeling. She talks about nothing and thinks she's a genius.
My dad is a Babeling. He talks about aliens and thinks he's important.
My friend is a Babeling. He says 'quantum physics' and thinks that's cool.