thicklips Share definition Flag a black person. Used most often in the UK, referring to the generalization that a common physical feature among black people is having "thick lips". Look, thicklips, stop jiggabooing around and stay outta jail. thicklips by PCone November 14, 2009 0 0 Get merch Get the thicklips mug. Buy Now — $32.95 See more merch