Ok, first of all, Skcin, thanks for clearing things out, as pervert as the rumour was.
I had never thought of that, (when you first said there was a a double meaning I thought it might mean something like:"let me lay down in a field and smoke some grass" or something
)
Either way, the "hippie" theory by Bikerchic rings more true to me. I never thought of LB as a "metaphor" sort of guy.