This guide is for the
What does it mean? trophy, which requires you to find a specific location in the central area of the Highlands and witness a double rainbow.
Simply go to the location on the map that you'll see in the video below, and then drop down into the area which has a sort of tent structure.
If you look out over the cliffs a double rainbow will appear and either Handsome Jack or Calptrap will begin talking about how incredible the rainbow is.
I honestly have no idea how to distinguish why you'd get Handsome Jack or Claptrap. When I got this trophy on Xbox 360 and on PS4 I got Claptrap both times, but the video below shows Handsome Jack talking.In case anyone is curious and doesn't know, this trophy is in response to a video posted in January of 2010. One time MMA fighter, Paul Vasquez took a video of a double rainbow in Yosemite National Park and posted it to Youtube.
Handsome Jack is basically imitating his over the top reaction.