Genital Flatulence
When you fart while sitting in such a way that it cannot escape along a normal route, instead percolating by way of the genital area.
John's genital flatulence caused his balls vibrate which in turn made him jizz in his pants.
Cassey's genital flatulence made her giggle and laugh out loud.
Cassey's genital flatulence made her giggle and laugh out loud.