N.N.S.
Nasty Nate Syndrome is when a guy goes full animal and pees in your butt like you're a dog and he's the owner.
He peed in my pants during lunch. I had to go home and change.
My friend got it at a party. He ran out and hid in the closet.
My teacher got it during class. The whole class was laughing and I had to help clean up.