Splanding techniques vary but usually requires assistance from a drug like MDMA combined with a psychedelic - you must be loose but also attuned, leaning without recognising gravities influence.
When droppin a poo log on the toilet the poo hits the toilet water and splashes water onto your buttcheeks. Causing you to wipe your buttcheeks of poo infested waters.
When you are watching a movie with a bro and a sad part comes up. Your bro begins to cry so you throw your drink in their face so no one can see that he is crying.