Top Definition
A gastroenterological (or digestive) event that begins with a rumble and ends with an impressive geyser-like display. This display often manifests as an involuntary projection of gastric contents from either the oral or rectal regions. If gastric matter is expelled rapidly and simultaneously from both regions, this is referred to as the "gastrotechnic grand finale."
"While traveling, I ate a tasty, yet extremely spicy dish. Later on, I realized it only served to light a fuse in my stomach which resulted in some colorful gastrotechnics.
by koleena February 04, 2010

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