Small lint ball like object found either in the pubic region of a woman or stuck to the clammy, sticky lips of her vagina.
Your mother must have had a hundred gundersuns stuck to her clam hole.
by Ada Gundersun August 30, 2003
(noun)unidentified crusty object stuck on the end of a women's pubic hair
Hey, have you been eating cookies naked again or is that a gundersun?
by sister luke August 31, 2003
Cotton lint ball found in a woman's pubic hair. The front side equivalent of a dingleberry.
My boyfriend got a gundersun stuck in his throat while he was eating my snatch.
by Clem Lucas August 28, 2003
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