1. (slang) someone who has taken a psychedelic drug and is undergoing hallucinations

Definition categories: person, user

2. a walker or runner who trips and almost falls

Similar word(s): stumbler

Definition categories: person, footer, pedestrian, walker

3. a tourist who is visiting sights of interest

Similar word(s): excursionist, rubberneck, sightseer

Definition categories: person, holidaymaker, tourer, tourist

4. a catch mechanism that acts as a switch

- the pressure activates the tripper and releases the water

Similar word(s): trip

Definition categories: man–made, catch, stop