Usage and Enlightenment

I'm happy that commercials for erectile dysfunction medications are now helping us improve our vocabulary.

From Webster's unabridged, 1913:

Pri"a*pism, n. [L. priapismus, Gr. , from Priapus the god of procreation, the penis, Gr. : cf. F. priapisme.] (Med.) More or less permanent erection and rigidity of the penis, with or without sexual desire.