riding around in the car with your friends for the sole purpose of getting high. usually ends up in a stop at every 7-11 along the way.
they went on a burn ride before the show and joe accidently burned the backseat with his cigarette.
Going out for a drive (preferably in the country) for the sole purpose of smoking marijuana. Often done when, for whatever reason, it's inconvenient to smoke in a certain location.
Hey Billy, I don't really wanna smoke in my house so ya wanna go for a burn ride?