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A long lost crisp which had not seen the light until you began to take your sofa apart looking for your change you've dropped, your keys or your phone. The Sofa Crisp's are usually Soft, soggy texture yet dry and crunchy and very dull in flavour.
"Ooo a Sofa Crisp"

"What does it taste like?"

"Soggy and crap."
by Kaneeeee July 09, 2012