spiz-zer-inc-tum /spizz-uh-RING-tum/ n. [E dial. (U.S.) spizarinctum cash, specie, prob. irreg. fr. E specie]: the will to succeed : VIM, ENERGY, AMBITION
I found this word in Webster's Third New International Dictionary. It is one of those fun colloquial usages.
This one, though: I have never heard anyone say this word, not in real life, not in a movie, not even in a book!