Top Definition
A visual or audible stimulus that causes persistent and sizable amusement and laughter, often surprising to the experiencer. The experiencer commonly subjects them self to the stimulus repeatedly, until they become desensitized to it and it is no longer amusing. Such an experience may last several minutes or even hours.
"Have you seen this video? YouTube:qsEZ2lpM0Yw
I can't stop watching it--it's such laughacid!"
by Jovet2 December 01, 2011
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