Snailocaust 

Putting a large amount of snail bait, glass powder or snail chemicals on your lawn/garden resulting in a large amount of snail deaths.

"Jeez...after you put down that snail killer stuff there's been nothing but dead snails everywhere; like a snailocaust."

Snailocaust by cheflane April 5, 2009

Stallocaust 

A public bathroom stall rendered un-usable from a plethora of feces, urine, and toilet paper distributed across the toilet, floor, and walls.

Mike: “Dude, I just witnessed a stallocaust in the 4th stall, don’t go in there.”

Jim: “Wasn’t me.”

Stallocaust by danterrycol December 5, 2011