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n. a small aggrivating girl, most commonly found in Western North Carolina.

v. To have an episode similar to a seizure where one shakes violently and falls out of his or her desk.
n. "Wow, look at the size of the backpack on that kellsi!"

v. "Oh my gosh, that kid is having an epileptic seizure! Call 911!" "No, actullay he just kellsied."
by Rodolpho April 04, 2007
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