Used to ask someone for (or to return) a favor. Deriving from weedculture for when someone lets you smoke their weed with them for free, is now often used to ask for any kind of favor.
Bro, I’m fuckin broke until I get paid next Friday. Could you smoke me up on a couple beers tonight? I’ll for sure get you back next weekend.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.