steamloller

A joke that is so funny that when all laughing has finished you feel as if you have been run over by a steamroller. You have trouble breathing, your chest hurts, smiling causes pain and the like.
"Oh man. That was a steamloller."
by Ethan Feldman August 06, 2005
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steamloller

A steamroller containing the substance of 'lol'. Suggests hearty lollerin'
"Steamloller!"
by steamloller March 13, 2003
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