I'll summon up the power of the GOD HAND!
1. The act of grasping; a seizing and holding fast; firm grasp using the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb in order to stop ejaculation during sexual intercourse by interrupting the process of Cavernous nerve stimulation (Parasympathetic).
2. Using a godlike grip to stop from bursting during sex.
so he slapped a godhand on the lower part of his penis in order to prevent it.