A phenomenon where nudity or other lewd activity is obscured by a bright ray of light so as to preserve the "family-friendly" nature of a scene.
The physical reason behind the existence of god rays was heavily questioned by Paisley Pythia Peinforte, who was finally given the explanation:
"At the center of the universe, there is a being named Rou Kaioushin who is an immense perv. He likes to stare at lewd things with his godly eyes. Whenever his attention is directed to something lewd, the intense ferocity of his godly gaze obscures the object of his focus with a ray of godly light - the God Ray™. When the lewdness is over, he stops looking and so the ray vanishes."