This began as a nickname, usually for someone who was a "third," as in William III. But in an age where any noun goes, this could be thought of as representing a little voyager -- hopefully not into psychedelic realms.
Charles "Trip" Tucker III, character on TV's "Star Trek: Enterprise"
Antoine "Trip" Triplett, character in Marvel's Agents of SHIELD
Trip Fontaine, character in Jeffrey Eugenides' "The Virgin Suicides"
Trip, character on TV's Time Force Power Rangers
Trip, character in the Pokémon anime
Trip, main character in 2013 film Metallica Through the Never
Trip, main character of video game drama "Facade"
Trip, term for a psychedelic drug experience