A person who you hang out to smoke weed. You don't need to be a close friend or don't even need to get along with him/her. The reason you hang out with that person can vary but it is usually because that person buys the weed or is willing to burn his leaf and smoke it up with you.
Duke: Dude, who was that weird guy? You two are not hanging together, are you?
Tobby: No! Well, he's my weedster so yes we hang out sometimes but he's not my buddy or something.
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)