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1.
Laughing. So. Hard. You. Sit. There. Clapping. Like. A. Retarded. Seal.
When something is so funny, no noise comes out and you sit there clapping like a retarded seal.

"Dude! That joke was so funny, i couldn't STOP laughing! and i wasn't just ROTFL i was LSHYSTCLARS
by MExicanAmerican March 31, 2012