The adventure your mind goes on while listening to a Beatles song. Generally occuring when one is high and listening to classic 60s/70s rock. A Beatle trip is where your taken away by the beautiful and epic composition playing, and seems to take you to another dimention, universe, or just a whole new world.
Stoner1:"Dude! That Beatle trip we went on earlier was epic!"
Stoner2: "Omg dude that was fuckin SICK! That song took me to a whole nother demention bro! Greatest Beatle Trip ever!"
Stoner1: "Beacause by the Beatles is by far the best beatles trip I've ever been on."
Stoner2: "That northern lights shit we smoked right before helped a bit too!