Origin of hepfrom uncertain or unknown; perhaps the drill sergeant's shout (alteration of step) marking time for marching troops
- (informal) Short form of hepatitis.
Hep is used only in the names of varieties of hepatitis, such as hep A, hep B, hep C, hep D, and hep E.
- High-energy physics.
Alteration of hip
(comparative more hep, superlative most hep)
US underworld slang of Unknown origin, first recorded 1908.