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aesthetically pleasing cleavage that is usually, but need not necessarily, be ample in quantity. the word is derived from the word fooblee, which is an onomatopoeia of sorts. In other words, if breasts could talk, "fooblee" is the sound they might make. Therefore, fooblosity is the presence of such fooblees.
"Son, did you check the fooblosity on that chick? So JUICY, with that little BOUNCE to it!"

"Word, Chadwick. That's Playboy material. Or at least Hustler."
by kamesh April 11, 2006
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