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Using (or offering) a thoughtful gauge to measure a woman's bare breasts. Boob-O-Meters often spontaneously appear at the in-fields of the most notable, and finest NASCAR forums (ie Talladega, Daytona, Brickyard, etc). Cardboard cut-outs are often used for mobile Boob-O-Meters, while plywood units sometimes appear at the more regular locations. Boob-O-Meters readings often include, "itty bitty", "oh mama", "melons", "big 'uns" and "good GOD" ...
She was able to fill out the "dammit Jim!" reading on the Boob-o-Meter we ran into this weekend at 'Dega !

My wife's sister registered as "itty bitty" while my wife scored "lordy lordy, they'd be 40!" on the Boob-O-Meter.
via giphy
by K3ys3rS0z3 July 17, 2017
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