We called it a "whorehouse cut"
All clean cut business in the front, low down dirty party in the back.
Take that you silly Yankees... The mullet is coming back!!
Actually, the roots of the Mullet come from the Southern Confederate Army. It's how the Cavalry Officers had their hair cut. Horses had manes for swatting flies away, and so did the officers. Some kooky crackpot doctor having hair to keep skeeters away from the face and neck would reduce malaria. Or so I have read.