Top Definition
Of women, when one's (bra) cup runneth over slightly, marring slightly the smooth convex curve of bra and boob-top. A tiny amount of overboobage is intriguing, but excessive overboobage leads to the much-feared four-boob effect. Overboobage is most prevalent in push-up bras, but can be found in any over-tight bra that is not full-coverage.
Bring me another bra. This one's cups are too small, and I'm getting severe overboobage.
by Miselaineous December 02, 2008
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