a hot, black individual with a strong sexual aura.
Examples:
1. Mmmmmmmm give me some of that mocha thunder.
2. She was such a mocha thunder, I would rub vegetable oil all over her naked body.
3. That man is so a mocha thunder, I would love to make frappuccino with him.
4. OMG! That woman is so mocha thunder.
5. In my opinion, Beyoncé is the definition of mocha thunder.