6head 

Meaning is someone is a retard

Dude, iwanttodie is fucking 6head

6head by 6header January 10, 2021

6 head 

When you still have all your hair you have a "forehead." As your hairline recedes this becomes a "6 head", an "8 head" or if completely bald, a "10 head."

I hadn't seen your brother for a couple years. He's got at least a "6 head" going on these days!

6 head by gumby April 16, 2003