When one takes a poo so large that the tip of the poo pokes out of the water's surface, creating a dump island.
Dude: Bro, I just took a huge dump!
Bro: Did it poke out of the water?
Dude: Yeah man, it was definitely a dump island!
Bro: Sweet.
Bro: Did it poke out of the water?
Dude: Yeah man, it was definitely a dump island!
Bro: Sweet.
by nastypoops123 December 21, 2011