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."
by Vance M April 23, 2008
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a boy who contains aid infected clam juice in his tittys and has a very undersized peny weeny
oh you see clam nipples over there he mustve cam out of and ally with a black man named latrelle
by lickle mann dunddy April 17, 2018
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