The act of taking a poop with a group of people.

the act of texting people while you are pooping

When 2 or more close friends gather into a public restroom and release their bowels together.

When two or more people poop at the same time in the same restroom, preferably including conversation. Also, the phrase, "You sunk my battleship!" should be shouted when a portion of feces falls.

Also referred to as GP.

when two or more people take poops at the same time in the same bathroom in stalls situated next to each other so they can have a conversation while pooping

Gr-oop p-ewp, verb, noun A prank which entails three or more members who partake in consecutive poops in the same toilet without using toilet paper. The toilet is not flushed, leaving the owner (or next user) of the toilet to view the mountain of poop.

4. A prank when several people decide to poop in the same toilet, so that when the last person flushes the toilet overflows, in the hope that feces end up on the bathroom floor