Top Definition
A term used when an overweight person has sections of flab across their back. Kinda like a six pack but the wrong way round.
Guy 1: "Dude, dude... check out the backwards six-pack on that guy!"

Guy 2: "Woah, he should really get some excercise..."
by errington10000 January 07, 2010
5 Words related to Backwards Six-pack

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