The act of sitting on a female's lap, then passing gas; causing the vagina to fill with "hot air." To "deflate the balloon," the female must abruptly stand, causing a mucky, ass-polluted queef to issue forth from her crotch, most commonly directed toward the male's face.
Last night, when Sasha was reading on the couch, I totally snuck up on her and gave her a North Dakotan Hot Air Balloon.
by FrothyRothy May 31, 2010

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