The act of shooting a strong stream of urine directly into one's mouth. This act's name is derived from the carnival game "clown splash" where contestants shoot a water gun into a clown's mouth which blows up a balloon.
She opened her mouth and closed her eyes for the surprise. However, she didn't anticipate the clown splash which drenched her mouth and face as she winced away in shock and disgust.
by A-Bomber April 14, 2008