Thickainia Share definition Flag A place made by the 10th Doctor in the English TV show, Doctor Who. "Mr. Thick, Thick Thickity-Thickface from Thick Town, Thickainia" - 10th Doctor Thickainia by ChewsWisely September 8, 2019 0 0 Get merch Get the Thickainia mug. Buy Now — $32.95 See more merch