Monies paid to a toilet attendent.
I was busting for a piss, but had to fork out the piss tax before releaving myself.
by Arch Crippledick February 03, 2009
A revolutionary way to lose weight.To simply put,whenever one takes a piss,they must now do as many push-ups as they can,hence the reason "tax"
Remember Tom,you owe the pisstax!
by Reggie The Writer July 01, 2014