n. A hedgehog.n. A sea urchin. See Sea urchin.n. A mischievous elf supposed sometimes to take the form a hedgehog.n. A pert or roguish child; -- now commonly used only of a boy.n. One of a pair in a series of small card cylinders, arranged around a carding drum; -- so called from its fancied resemblance to the hedgehog.adj. Rough; pricking; piercing.