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Someone who is very stiff and stupid; a very lazy moron; one who is paralyzed by lack of thought or ambition.
Roommate 1: Hey rigormoron, did you get off the couch at all today and look for a job?

Roommate 2: Nope, I seen stuff on TV though.
Roommate 1: You need a shower dude, and a new place to live.
by Katya Eye January 06, 2015
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