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-noun A modern slang term coined in Essex. Appearing French in origin it is actually a witty play on the words "rib, "boob" and "on". 1. When the breast of a slim (to thin) girl rests on a hint of rib. 2. Also pronounced (when misunderstood); Boob-on-rib; When a slim girl has an attractive contrast between the breast and the ribcage.
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