Gadsden Geiser
When a guy shoves his willy into a lady's snatch and pees while she's also peeing, making a giant pee explosion out of her.
He peed in her while she peed. It was a full-blown pee tsunami.
She was like, 'What the hell is happening?' and he was just laughing.
They both peed at the same time. It was like a pee war.