spec bust Share definition Flag The act of busting a nut in a girls glasses. Also known as giving a girl cuoggles - cum goggles. I met a 4 eyed chick at the bar, took her home and hit her off with a spec bust spec bust by Lil Earthquake December 29, 2009 0 0 Get merch Get the spec bust mug. Buy Now — $32.95 See more merch