Knobbly Penis Share definition Flag Dr Eamonn O'Neill, Lecturer, Department of Computer Science, University of Bath, England This man is a twat and a cock at the same time, which somehow combines to make him the definition of "Knobbly Penis" Knobbly Penis by hohoho January 13, 2004 0 0 Get merch Get the Knobbly Penis mug. Buy Now — $32.95 See more merch