A fetish in which a couple are having sex doggie style, while the man eats macaroni and cheese off of his woman's back.
Friend 1: Dude, I totally had some back'n'cheese with that girl from last night.
Friend 2: Holy shit, that's insane! How'd it taste?
Friend 2: Holy shit, that's insane! How'd it taste?
by MUFFINPIEZ January 27, 2013
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