Top Definition
The small, very thin absorbent pad with an adhesive backing that a woman sticks to the inside crotch of her underpants to catch normal daily vaginal secretions, as opposed to a much larger sanitary napkin, which is used during the menstrual period.
"Why should I put on a brand clean pair of panties every day when I can just slap a fresh pussy filter in the crotch of these every mornin' and wear 'em for two weeks?"
by Maynard Melvin June 11, 2005

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