O.P.S.J.
It’s when a girl grabs your junk so hard it feels like you’re getting a hug from a bear.
He got an O. P. S. J. in the bathroom and it was the worst thing ever.
At the movies, a girl squeezed him through his jeans and he had to leave the theater.
During a dance, he got an O. P. S. J. and it was like the whole school could hear him scream.