Crust"y (-?), a.
1. Having the nature of crust; pertaining to
a hard covering; as, a crusty coat; a crusty
surface or substance.
2. [Possibly a corruption of cursty.
Cf. Curst, Curstness.] Having a hard exterior,
or a short, rough manner, though kind at heart; snappish;
peevish; surly.
Thou crusty batch of nature, what's the
news?
Shak.