Poop Tax 

The tax implied that someone has to pay or else the tax man will shit on their bed.

"Mom didn't pay my allowance, so it's being changed into the poop tax!"

Poop Tax by Voxx Lanton August 18, 2008

anti poop tax 

The tax that must be paid to prevent the pooping on someones bed. A form of extortion.

I shat all over her bed because she failed to pay me the anti poop tax.

anti poop tax by TheMadCrapper December 30, 2007