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1 definition by B.Quizzle

 
1.
A term to covertly describe large women...uses the same scale as tornados (B1-B5) to rate them more specifically from having a slight pooch to being morbidly obese. Commonly found with lluna at parties.
"Dude, did you see that pair of B4s just walk by?"
by B.Quizzle March 28, 2005