Jack jack off off
When a bunch of Jacks get together and see who can make the most mess while they jerk off. It's like a party, but with more cum and less cake.
Jack from the bar had a Jack Jack Off Off with his friends. They all ended up in the bathroom.
At the Jack Jack Off Off in the restaurant, one Jack spilled soup on the floor. It was a disaster.
Jack from the school started a Jack Jack Off Off in the hallway. The janitor had to clean it up.