[WPI: from the DEC
abbreviation CUSP, for `Commonly Used System Program', i.e., a
utility program used by many people] 1. (of a program)
Well-written. 2. Functionally excellent. A program that performs
well and interfaces well to users is cuspy. See rude.
3. [NYU] Said of an attractive woman, especially one regarded as
available. Implies a certain curvaceousness.