Top Definition
The highly uncontrolled expulsion of intestinal matter during heightened and intense states of laughter and enjoyment.
"I'm dumping my boyfriend. When he sees the latest lolcat, he covers the computer room in lolarrhea. The maid hates him."

"I had lolarrhea when I saw my friend's reaction to 2 girls 1 cup"

by wyzyrd March 03, 2009
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