Piss on my shit 

An expression to convey disgust or anger. Best used when the words Piss and Shit are strongly emphasized.

Derived from those who defiantly choose not to flush an extraordinarily large, smelly load of shit in a public restroom only to be discovered by another who merely ducked into the stall to piss instead of waiting for a urinal.

Walking in the dark and stubbing your toe... "Piss on my shit!"
While sitting at a traffic light checking your text even after the light turns green, the driver behind begins to honk. You look in the mirror and yell, "Piss on my shit!"

Piss on my shit by Signguy2 December 7, 2018