rainbow trail 

any path between rainbow gatherings

But just as many insist she must be off on the “Rainbow Trail”, a euphemism for dropping out of society.

rainbow trail by theoraclefool September 24, 2011

Rainbow trail 

Pubes or hair that runs down usually starting at the belly button

Do u wanna see my rainbow trail ratfucker

Rainbow trail by Nut(fucker)tapper _69 March 23, 2017