When a woman's grotesque amount of fat in her lower stomach area bulges through pants or jeans so far, that it looks like that area of her body is swollen, and is no doubt covering her vagina. The absolute doublechin of stomachs.
Dude 1: "Man, her Poon-Bulge was so huge, that I had to LIFT that flap just to get in there and get some last night! Serious tubster."

Dude 2: "Bro, that's gross. I can't believe you hooked up with that. Horndog."
by jayfreshh May 14, 2010
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When a womans vagina bunches up in her pants to create bulge-like form.
"When she stands up, check out her poon-bulge
by Jake T. Anderson October 31, 2006
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