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1.
A sudden and uncontrollable release of intestinal gases.
(from Latin. "flatus" -- intestinal gas + Greek "lepsus" -- an attack.
1. "Poor Tom had to stay home. He has flatulepsy".

2. "Flatulepsy can be treated by a regimen of proper dietary intake."

3. The sudden exodus from the room was blamed on a unbearibly odiferous instance of mass flatulepsy, brought on by excessive chili consumption."
by Steeplejack February 12, 2010