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1.
A woman who urinates in her underwear, especially one who does so deliberately for sexual stimulation.
Sheila is a secret pantie wetter, but it's her fantasy to do it in public.
by starflier December 08, 2003
 
2.
a large penis when deemed attractive by a woman
Wow! His dick is a real pantie wetter; I got soaked just looking at his thick 7-incher said Jane.
by Jake January 29, 2004