Any type of circular shaped Rx ADHD medication containing amphetamines. Usually used to refer to Adderall.
Guy 1: "Hey, are you rolling right now?"
Guy 2: "Nah I got jipped, that pill was just some Parnes Ecstasy. I'm gonna go home and study"

Guy 1: "Hey Parnes, try this ecstasy."
Parnes: "Sweet!"
Guy 1: (under his breath) "dumbass"
by docet thumper April 29, 2009
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