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When someone describes you as a "limp rag", it means you have erectile dysfunction and you suck in bed. You try to pound your girlfriend but it's like trying to shove a hot dog into a square whole...it just doesn't work.
Kady: "You're a limp rag in bed"
Barry: "I'm sorry, i'll go take some Viagra"
by Jasonn Rexing November 03, 2009