To strike with the force of a Mack truck. To decimate an oponent with a single blow. Used as a sexual reference, whilst humping doggystyle very similar to a donkey punch however when striking the young womans lower back, you unintentionally break her spine.
"Man, i accidentally Ditka punched michelle last night. So i finished up and dropped her in front of the hospital."
"He was like 'say what you need to say,' so i ditka punched his face in"