What does Beaching One mean?

Beaching One meaning in Urban Dictionary

The act of sitting on toliet backwards,facing the container and using a crap. The waste material may be deposited when you look at the bowl, above the water line, resulting in a really aromatic deposit. Subsequently, whenever flushed, the water from bowl will not be inside appropriate positioning to scrub the offending turd into the strain, leaving it to dry and stain the bowl until some poor bastard needs to physically eliminate it.