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Someone who laughs at inappropriate times.

Dick laughed at the wedding, and exclaimed "Oh Brother!", when his ex-girlfriend said "I do".

Willy laughed at the funeral when the Cardinal stated that Father Dickinson had been an excellent priest.
by Trojan Getcid July 02, 2006
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When you are about to bust a nut and begin to savagely tickle your partner's anus, thus causing her to spurt out uncontrollable laughter; then, in retaliation, she begins to claw at your dick.
Dude, I was totally about to finish last night but Cindy decided to turn into a Laughing Hyena.
by Biodiesal Bob November 20, 2015
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