plutonium poop

A plutonium poop, is a poop commonly defined by its extraordinarily high levels radioactivity. This is due largely in part to the high concentrations of raw plutonium and Cobalt-60. The origins of plutonium poops are completely unknown, but are becoming increasingly common in public restrooms.

"dude, I think someone dropped a plutonium poop in the mens room. the smell gave me ball cancer"