Specificly when he lands a girl willing to go the distance it is thought that his initial penal engorgement will be a whopper, from a lack of sexual stimulation for long periods.
Also thought to be sex that is rough, greedy and slightly desperate in nature.
"All right battle buddy! Did ya' clobber her with your rape bat?"
"Yeah dude! Whiped out my rape bat and clobber f@(ked her!"