(chiefly Britain, informal) A tramp or homeless young person with poor cleanliness. / (slang) Dried eye mucus.

Having a crust, especially a thick one. / (informal, figuratively, of a person or behavior) Short-tempered and gruff but, sometimes, with a harmless or benign inner nature.

Alternative form of crusty (“a New Age traveller, or other similar person.”)

plural of crustie / plural of crusty

The state of being crusty

plural of crustiness