lilylicker Share definition Flag A south Irish slang term meaning "nancy boy." It refers to someone that many men would consider a wuss. That Gallahad sure is a lilylicker, he won't even defend his wife after someone spoke ill of her. lilylicker by coryr185 December 9, 2008 0 0 Get merch Get the lilylicker mug. Buy Now — $32.95 See more merch