D.W. Share definition Flag D.W. abbrv. 'Danger Wank'. The practice of sly masturbation in public places. 'Where's Chris?' - 'Oh he's just popped out for a quick D.W.' D.W. by Gnasher69 August 21, 2009 0 0 Get merch Get the D.W. mug. Buy Now — $32.95 See more merch