Sea Breacher

When dumping your excrement out of your anal cavern, you unload a turd so big that some of it pokes out of the toilet water, thus becoming a sea breacher. Usually, a sea breacher causes a major splash.

Jamarcus: I finally took a shit after 3 days.
Kevin: Jeez, how big were your turds?
Jamarcus: Bro, there were at least 4 sea breachers.