What do you call it?

So, my friends and I have, over the years, come up with a slew of terms to refer to smoking weed so that we could avoid accidentally saying it in front of someone important (for example, one of our Deans and our President, both of whom are very quiet, sneaky women who love to socialize with students.) Some of our terms are:

Self-Medicating, Pack your Bags, Going to Disneyland, Philosophizing, Flying my Kite, and my personal favorite, "Going to climb some trees."

A lot of these have ridiculous stories behind them, but I still find them funny. Does anyone else do this? What do you call it?