when you go to the bathroom for a piss... you piss everywhere but in the toilet, then flush before you leave to create the illusion of a regular piss.
then when the next person enters they skid across the pissy floor.
A more extreme version of a skizzy but more vile version of a bogan. A skizzy munter is similar to a bogan but upon closer inspection has some more repulsive/feral/skizzy characteristcs.