porch shit

When somebody shits on a neighbors porch.
Usually expresses deep hatred.
Can be used to end feuds between neighbors.
Will piss off the targeted neighbor to an unbelievable degree.

Dude 1: I've been feuding with that damn neighbor for years! He just took a Porch Shit!

Dude 2: I Wish I'd been there to see it.

Dude 1: I got a picture! I'm sending it to the homeowners association!