When a women has become overweight to the point of having a large, sweaty, cheese producing flap or roll of fat hanging down over her puss.
Check out the poon flap on roseanne.
by matt March 29, 2003
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just look at your mom's snatch... you'll know...
Oh my fucking christ, your mom has some gnarly poonflaps.
by fat fucking penis March 21, 2003
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An untapped poonflap is a pristine e-girl vagina. Specifically one that has voluptuous lips.
Gee: Yo did you ever get nudes from that e-girl everyone thinks is hot?
Ugi: Ya dude she sent it. That’s one radical untapped poonflap
by AnyPepegas? January 9, 2020
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A pristine e-girl vagina. Especially one that has voluptuous lips.
Gee: Yo did you ever get a cooter pic from that one girl?
Ugi: Yo I didn’t just receive SOME cooter pic bro. I received a pic of an untapped poonflap
Gee: Oh shit..
by AnyPepegas? January 9, 2020
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