macrocranialism
A condition where your head is so big, it looks like it was stolen from a giant. Your brain might be small or just really tired.
His head is so big, it blocks the sun. And he still doesn’t know how to read a clock.
She has a head like a melon. And she still doesn’t know how to spell ‘melon’.
He walks in with a head so big, it looks like he’s wearing a hat made of clouds. And he still doesn’t know what a cloud is.