wank knob Share definition Flag When a person is both a wanker and a knob head. Joe: Did you see that guy, Alan? Spence: Yeah, he was a total wank knob...fuckin' Martyn. wank knob by RubySpank December 11, 2006 0 0 Get merch Get the wank knob mug. Buy Now — $32.95 See more merch