from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A person considered to have been born on a
cuspbetween significant generations
- noun astrology A person born on a day at a junction of
Sorry, no etymologies found.
Baruchel's one of those yet to break out -- he calls himself a perpetual "cusper," since promises of a breakthrough (most recently in fellow Apatow alum Ben Stiller's "Tropical Thunder") never actually happened, which doesn't bother him.