Bathroom Battleship 

When 2 friends are in a public bathroom in adjacent stalls taking dumps. Each wipes his ass with toilet paper and then proceeds to toss the soiled toilet paper over the top of the stall into his friend's stall in an attempt to hit his friend with the soiled toilet paper. Similar to the game "Battleship" except you use toilet paper with doo doo on it instead of plastic pegs and a bathroom stall instead of the game board.

Mom: How did you get those doo doo stains on your shirt and in your hair?

Son: Johnny and I played bathroom battleship at the supermarket.

Bathroom Battleship by chork September 9, 2005