Gorilla Smack
When a guy is sitting down using the bathroom and when he gets up, his genitals get caught on the toilet seat and land back on the toilet to make a smacking sound.
While I was in the bathroom, my mom asked me if I was alright and I said, "Yeah, I just got gorilla smacked."
gorilla smacked
to be very high, stoned, faded, etc.
dude that kush had me fucking gorilla smacked last night