When you take a large, long crap that touches both sides of the toilet bowl, and fails to break in half when the toilet is flushed, leaving the turd high and dry, bridging both ends of the toilet.
Hold up a sec I gotta take a crap. OMG Someone took a bridge poop in here that won’t flush. I’m going somewhere else.
After the first or second day of being at the beach, you take an epic poop. The salt air and salt water creates the perfect atmosphere for an epic dump. Always a clean break with little residue when wiping.