j balvin
The J Balvin is when you stand up on your hands in the empty public pool, naked, and someone jumps off the diving board and hits your balls. If it happens in another city, it's called a Paul McCartney, and it's even worse.
I did a J Balvin in my local pool, and my cousin jumped off the high dive and hit my face. I was crying for two days.
I tried to do a J Balvin in a different city, and it turned into a Paul McCartney. It was like a fight between my balls and the sky.
I did a J Balvin in my school pool, and the principal came in and yelled at me for being naked in the pool.