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When a fat person has rolls on their lower back that form 3 rows on each side, resembling a muscular abdominal six-pack.
Check out the rolls on that fat guy! He has a six-back!
by Dr. Devience September 07, 2013
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2
The bulges protruding from a fat chick's back when her dress is too tight. Usually above and below her bra and the spare tire aka love handles.
Six Back gives you wings
by MRS. DJ September 08, 2013
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