Definitions by Vance M

clam neck nipples 

When a woman's nipples are long, skinny, and dark in color. Resembling the external portion of a clam's gastrointestinal tract also known as the "siphon" or the "neck."

"Dude it was gross, that chick had clam neck nipples."

clam neck nipples by Vance M April 25, 2008