helmullet 

A thatch of hair cascading out the back of an athlete's helmet, such that the helmet itself seems to have sprouted a mullet.

Sure, the Dolphins' one-and-only "Rasta Running Back" Ricky Williams may lack dedication on the football field. But when it comes to cultivating a first-rate helmullet, he was nearly peerless in his heyday.

helmullet by ColdMiser January 20, 2006

Hammullet

A hairstyle characterized by a Dorothy Hammill in the front and a party in the back. A variation on the classic mullet.

Her hairdo could be called a Hammullet because she had a curled under bowl cut in the front, and longer, straight hair in the back.

Hammullet by scsween October 14, 2009