Top Definition
When a baby has such a massive poo that it shoots out the top and/or leg holes of the diaper.
Oh no, the baby had a poo-splosion! Now we both need a change of clothes.
by stargazer7777 January 07, 2010
when your holding in a poo for soo long and it just lets go all at once and theres poo everywhere
or when you let your poo go as your running thus going everywhere
holy crap that poosplosion was soo bigg it went into the next stall
by scruffemsthehobo September 22, 2007
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