Looks like a nice party!
Regarding the word "marijuana" - it was a slang term created by the US government decades ago, to make cannabis sound Mexican, and thereby encourage Americans to consider it foreign, dangerous, and taboo. They did this as part of Reefer Madness in the mid-1900s, a campaign to demonize this amazing plant. Really, it is cannabis! Or for slang use, weed, pot, and so on.