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] A tourist who is visiting sights of interest
   - sightseer, excursionist, rubberneck 
4. A catch mechanism that acts as a switch
   "the pressure activates the tripper and releases the water"
   - trip

Derived forms: trippers

See also: trip

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

Encyclopedia: Tripper

• go walkies
• go west
• go with
• go without
• go wrong
• go-ahead
• go-around
• go-as-you-please
• go-between
• go-cart
• go-getter
• go-getting
• go-go
• go-kart
• go-slow
• go-to-meeting
• Goa
• goa bean
• goa bean vine
• Goa powder
• goad
• goaded
• goading
• goal
• goal line