thi-lan Share definition Flag a hyper brunette, straight edge, a hard to get with girl, easily taken out to chinese food. normally sexy. dammn!! i took out a thi-lan last night, but she wouldn't get jiggy wit' me! thi-lan by Phia and magggy March 27, 2010 0 0 Get merch Get the thi-lan mug. Buy Now — $32.95 See more merch