The back fat directly behind the titties on an obese woman, her back tits.
"OMG look at that back rack, thats disgusting, its coming after me!"
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When overly obese women have what appears to be another set of tits on their back.
Mike : Did you see how fat that girl is ?
Adam : Yeah she must have like a size 36C back rack attached
by Colonel Yetuson April 5, 2009
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When an individual sees two ladies in a row with great racks. Usually occurs in a public setting, such as a sporting event.
Just saw back to back racks while heading to the snack bar.
by triz18 September 5, 2011
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Brassiere. Other slangs are, but not limited to; "Over the shoulder boulder holder" and "Across the chest breast rest".
I had to ho buy an over the back rack shack for my wife the other day.
by Toblucz May 2, 2014
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Lil Nas X's famous line in his song 'Industry Baby' featuring Jack Harlow
"Baby Back ay, Couple Racks ay." Person 1
"I see you have seen Lil Nas X's and Jack Harlow's new song Industry Baby" Person 2
by Douglassman43 October 30, 2021
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