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Noun: tripper  tri-pu(r)
  1. [slang] Someone who has taken a psychedelic drug and is undergoing hallucinations
  2. A walker or runner who trips and almost falls
    - stumbler
  3. [Brit, informal] A tourist who is visiting sights of interest
    - sightseer, excursionist, rubberneck [informal]
  4. A catch mechanism that acts as a switch
    "the pressure activates the tripper and releases the water";
    - trip

Derived forms: trippers

Type of: catch, drug user, footer, holidaymaker [Brit, Cdn], pedestrian, stop, substance abuser, tourer, tourist, user, vacationist [N. Amer], walker

Encyclopedia: Tripper