What does “Hippie Lettuce” mean?Slang for weed, often used by those who don't smoke often (or at all). The name comes from the association of cannabis with the hippie movement of the 1960s. Cannabis is also green, so the association with lettuce is only natural. This term is sometimes used facetiously by stoners who like to joke about the “reefer madness” crazes of old.
“Aw, I'm out of hippie lettuce. Guess we'll have to save that smoke session for next time.”