What is the ruling on saying, "God evolved in his alfalfa"?

It is not permissible for a Muslim to say to his Muslim brother, "O bull of Allah," because it is a derogatory expression that signifies dullness and stupidity. The bull (thawr) that Allah created is only concerned with eating clover. However, attributing the bull to Allah as in "the bull of Allah" is acceptable, as it is an attribution of ownership and creation.