I'm from the other side of the world, and never saw "Easy Rider" (well I've seen a few snippets - and seen a few references on HUG sites), but.....I'm from the era.....
'Don't Bogart that joint my friend' .....
Would have to be a reference to one of the "Hump-free" Bogart films, would it not?
Just a thort.....
Sam