Definitions by jun0!

hat head 

When you put on a hat for a long period of time, and after taking it off, your hair takes the shape of the hat. Usually occurs when your hair is particularly greasy.

-After a game of golf, Malvin takes his cap off-

Oliver: Dude, you've got hat head, when was the last time you showered?

hat head by jun0! April 4, 2009