Superfund bathroom.

For fresh air urination.

The agency will fine you otherwise

Our environment don’t take shiat from nobody!

…or you will be prodded with this long white spear.

For those who don’t know their lavatory from a hole in the ground.

Just another bureaucracy with a load of paperwork.

Google doesn’t do much better here: “Environmentally friendly toilets move forward”.

What’s meant is obviously, “For an eco toilet, go forward from here”.

Pee green?

Its name is Pierre.

An echo toilet, for resounding farts.

I always wondered. If one used the toilets at Mach 2 in the Concorde, did one create sonic booms?

Hmm. Crapping at twice the speed of sound, might shatter your dunny.

Soylent Green perhaps