bigboobgrowitis Share definition Flag When a woman's boobs grow at least two cup sizes within a semester of time. "Dang! Did you see Danielle's boobs?! She MUST have caught bigboobgrowitis!" bigboobgrowitis by dt1218 November 30, 2009 0 0 Get merch Get the bigboobgrowitis mug. Buy Now — $32.95 See more merch