D-Low.2.0 Share definition Flag a person so dumb that you would think he has water where his brain should be....also see waterhead definition. I asked dakota what 2 plus 2 is but he's such a D-Low.2.0 that he cant do algebra! D-Low.2.0 by DL...H20 May 18, 2010 0 0 Get merch Get the D-Low.2.0 mug. Buy Now — $32.95 See more merch