Tripper

[tripә]

(noun.) a catch mechanism that acts as a switch; 'the pressure activates the tripper and releases the water'.

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

Typed by Ethan--From WordNet

(n.) One who trips or supplants; also, one who walks or trips nimbly; a dancer.

(n.) An excursionist.

Inputed by Edgar