obfoxious
Obfoxious is when someone is so full of lies and nonsense that they make the worst parts of a bad movie look good.
My cousin is obfoxious because he still believes the Earth is flat and that aliens are just bad drivers.
My dad called my math teacher obfoxious because she said 2 + 2 was 4, and that’s not cool.
My friend’s cat is obfoxious because it judges my life choices every time I eat pizza for breakfast.