An explosive shit babies make in their diaper. It is on a grand scale, blowing out the sides and tracing down the extremities, leaving parents absolutely mortified.
"OMG. What the FUCK happened?!"

"Diaplosion. It's serious."
by Rubykon February 11, 2016
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Essentially a diaper explosion.. The phenomenon that occurs when a baby has such an explosive shit, the results spurt out of the diaper and trace down the extremities. Clothing is ruined and the baby needs an entirely new wardrobe change-out, with the stained clothing simply being thrown out.
"Man, what the fuck happened?!"

"Shit. She had a diaplosion. Quick, get me some towels!"
by Rubykon February 9, 2016
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