Going Hulk is a sexual response in males when in the process of getting a hard on. So much blood gushes from the brain to the reproductive organs that a slight tug in the brain. This serves an induction that the person is momentarily stuck in a state of basic urges.
Terry stared at his waifu so long all the blood in his head went to his erection. He seemed to stare like a nenderthal GoingHulk but just for a moment.
