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Noun: pep pill  pep pil
Usage: informal
  1. A central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
    - amphetamine, upper [informal], speed [informal]

Derived forms: pep pills

Type of: drug of abuse, excitant, stimulant, stimulant drug, street drug

Encyclopedia: Pep pill