bollum head 

an unusually large mis shapened, mongoloid type head

That freak on The Goonies sure has a bollum head.

bollum head by Holly Girl December 6, 2011

bullum head 

Southern slang for someone with a large or misshapen head. See kids in the hall.

Once upon a time there was this eel monkey, and he had himself a bullum head

bullum head by Riff Randell January 13, 2008