Definitions from Wikipedia (OPPPP)

▸ noun:  (1-(3-Oxo-3-phenylpropyl)-4-phenyl-4-piperidinyl propionate) one of several compounds derived from MPPP, the reversed ester of the opioid analgesic pethidine, which were sold as designer drugs in the 1980s, but have been rarely encountered by law enforcement since the passage of the Federal Analogue Act in 1986.


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