When the world ends somehow as a result of either too much or too little popcorn. The likelihood of the apopcornlyspe ever actually happening is extremely low.
"We've run out of popcorn! It's a sure sign of the apopcornlypse."

"These popcorn machines have created a disaster of apopcornlyptic proportions."
by NotJeremyCamp April 21, 2015
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