Baba shaga - You use it when someone is so dumb, they think they’re Einst

You use it when someone is so dumb, they think they’re Einstein but they’re really just confused.

Baba shaga! You think you’re smart, but you can’t even read the question.

I called my teacher Baba shaga because she thought 2+2 was 5.

Baba shaga! You’re so confused, you think a dog is a cat.