Jesus built my hot rod is an expression used to describe the Christo-symbolic aspects of ones material posessions and personal physical manifestations as being holy or possessed of spiritual and metaphysical powers. In common speech, one could say "Jesus built my hot rod" in the context of a discussion of one's general prowess. In western societiy, the fast car or "hot rod" is symbolic of the penis, and of the male power to penetrate the world, perhaps equivalent to the Shiva lingam in Hinduism. The spiritual character of physical objects can have a deeper meaning when discribing personal body parts.