a phenomenon that occurs on men and/or women when the temperature reaches a critical point that evokes diamond hard nipples, usually protruding through clothing.
Example 1 -
Person A: "Yo, it's mad nipplicious out here man!"
Person B: "I know! You look like you got yourself a nice pair of diamond cutters there!"
Example 2 -
Person A: "Does she not realize that it's nipplicious out here?"
Person B: "Yea seriously. She needs to put a bra on!"
Person A: "Yea like totally!"
Person C: "Wtf! Are you talking about my nipples? For your information they are real, and they are spectacular!" =)