Something that is so funny that you cant help but laugh so hard, tears stream down your face and you can no longer breath and your on the brink of peeing yourself.
Dude that was so heeheelarious; Katie had to rolling around on the ground for like ten minutes. I think she may have brain damage.
by Gigglie Girl September 25, 2008
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Many defininitions in this dictionary are heeheelarious.
by Tamish October 26, 2005
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