When a woman's nipples are large and pruny. They stick out so far that without the proper bra one is likely to lose an eye.

Often when you rub them a brownish/black substance discharges in a missle like fashion. Much like squeezing a fat dried up old grape.
Dude, Dee has the biggest raisin nipples I've ever seen. I squeezed them and got douched in the face with the black spew of death.
by ZiggyPoo November 9, 2017
Get the Raisin Nipples mug.