Definitions
1.AdjectiveHaving a crust, especially a thick one.
2.AdjectiveShort-tempered and gruff but, sometimes, with a harmless or benign inner nature.
3.AdjectiveOf very low quality; crude visuals or harsh, granular sound."The door opened with a crusty squeak that echoed in the silent room.; The old vinyl record made a crusty crackling sound as the needle hit it.; A crusty sound came from the rusted hinges of the gate."
4.NounA tramp or homeless young person with poor cleanliness.
5.NounDried eye mucus.
6.NounA member of an urban subculture with roots in punk and grebo, characterized by antiestablishment attitudes and an unkempt appearance.
7.NounDried blood or serous fluid buildup following body piercing.