adj. Pertaining to or having a crust, as, for example, in the case of bread.adj. Short-tempered and gruff but, sometimes, with a harmless or benign inner nature; peevish, surly, harsh.n. A tramp or homeless young person with poor cleanliness.n. Dried eye mucus.n. A member of an urban subculture with roots in punk and grebo, characterized by antiestablishment attitudes and an unkempt appearance.