Disinfectant 

Dread theory that piss won't flush toxins is completely false

For in Nam we were taught a buddy's wound by gunshot best

be cleansed to chagrin of Mr. Gangrene whenever if 

ever your canteen is dry 

Try the cleanest kidneyborn 

disinfect known to man and antimetaphorically 

pee thus upon the same man pissed on for months by sergeants, flags, and governments, preamble precursor to Tomb of great grated Unknowns. Guarded day and night by staunch starched clones upright like ramrods of old in march solemn to and fro in alert antic 

pheromene patrol although none present dare could suspect the Great Unseen reflex need to pee again.