An expression used to reveal great surprise and that can be used in place of dang because it adds flavor and spunk. Make sure to hold out the dang part longer than the son so that it creates the perfect mix of dang and son. However, just because this is said, does not mean that the person is actually your son, but rather a friend that seems sonnish.
1. Dang son! There's some crazy shiznit going down in this hood, ya mean?
2. John: I just killed a llama with my candy cane!
Tom: DAAAAANG SON!!!!!