1 definition by nathanielone
Provigil is a perscription central nervous system stimulant. Developed by the military, Provigil is used to treat narcolepsy and chronic fatigue syndrome, effects are smoother and cleaner than amphetamines and it is thought to improve memory and cognitive function, street use is rare but was popularized by Boston graffiti writer "ohyeser."
by nathanielone December 28, 2005