rusty clam digging

Paying homeage to New Englanders, It is customary to blindfold self and line up three willing female parties in a row. One, and only one of these parties must be on the rag. You then precede to perform cunnilingus on all three parties; blindfolded. You must use sense of taste to identify the one with the bloody, rust tasting, clot-laden, hairy, cunt. When detected this culinary mystery you must scream aloud, "That's aint Chowdah!" to win.