crusty nipples 

nipples in which over time have molded, became saggy, and crusted over. old nipples. usually those of the mid aged people. found in mothers of 3 or more and prostitutes

wow, her crusty nipples make me get the chills.

crusty nipples by randomness_chickas April 3, 2010

titty nipple lip crust 

Crust that comes off the nipple

Your titty nipple lip crust got in my salad!

titty nipple lip crust by Babydoll400 February 24, 2015