TCP

adjective2

1. •
   Initialism of thienyl cyclohexylpiperidine: tenocyclidine, a disassociative anesthetic drug with hallucinogenic properties. (Compare PCP.)

   • 5 percent of street THC samples are combinations of TCP and PCC. — 1978
2. •
   Initialism of to complete party (followed by total number in group. Code used in OSI to advise an airline that other passengers are travelling with a person but are booked separately)