D00sh
When someone is so clueless and proud that they think the whole world revolves around them, even though they can't even do basic math without a calculator and a curse word.
My math teacher is a D00sh. He thinks he's Einstein because he can add 2 + 2 and still get confused.
My friend's brother is a D00sh. He told the gym instructor he was a bodybuilder just because he had a shirt that said 'Muscle' on it.
My mom's coworker is a D00sh. She thinks she's a chef because she once burnt toast.