bababushka
A bababushka is someone so stupid they think their mom is a lesbian and also think a donut is a type of spaceship. You can’t even argue with them because they’re too dumb to hear you.
At lunch, my friend said, 'You’re a bababushka, I swear.'
My mom told me I was a bababushka because I thought the internet was a real place.
In a DM, someone said, 'You’re a bababushka, I can’t even.'