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..."
Guy 2: "Woah, he should really get some excercise..."
by errington10000 January 7, 2010