Top Definition
When someone must travel between multiple houses and locations on a mission to aquire illegal drugs, usually cannabis.

A common example is for a couple people to leave one house, pick up some people and smoke some bowls at another house. Then a couple people going to the dealers house to grab say an ounce of weed, then selling some weed at another friends house. Often smoking weed the whole time.
"I had to buy and sell across like 6 homes on this interplanetary mission last night and I'm still high."
by pownasaurus May 06, 2009
13 Words related to interplanetary mission

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