1: fuzzy or solid dice or cube figures that have come in contact with a person or person's nipple and or nipples
2: a slang for drugs, such as weed, crack, heroine, etc.
3: an insult, closely related to jerk. usually insulting the person being called a nipplecube because of a negative or mean action.
1: I have these fuzzy dice that I hang on the mirror in my car, and my boyfriend was changing his shirt in the car so I threw them at him, and it it hit his nipple, so it was like lol nipplecubes.
2: man I got so wasted last night on nipplecubes, it was sweet.
3: I heard that guy dated 3 girls at the same time. what a nipplecube.