A friend who smokes cannabis; specifically, a friend met on the "trees" subreddit of Reddit.
"Frient" comes from the combination of "friend" and "ent"; "ent" is a term used to refer to members of the trees community on Reddit, originating from the fact that ents are fictional keepers of the trees in Tolkein's "Lord of the Rings" and from the fact that marijuana nuggets often look like miniature trees.
Dude, I toked up with a new frient from r/trees yesterday.
30👍 27👎