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2.
(n) The laughter of a small group of friends at something really stupid and funny, such as: a Youtube video, video game, movie, TV show, etc.
It was a real cacklefest after Niko Bellic did several backflips after crashing his motorcycle into the subway car.
by Joey Hands June 18, 2010
 
1.
To engage in an uncontrollable series of of shrill laughs, which are often uncomfortable to the ear. Sometimes abbreviated to "CF."
My boss's friend just called him for a 20 minutes cacklefest. I had to close the door to his office to dull my headache.
by DGC01 July 02, 2009