smoke wall[s]
The act of blowing marijuana smoke at a small beam of light shining through a small space between curtains and or blinds to create the illusion that there is a wall of smoke. You can also use mirrors to make more than one wall.
Mexico: Hey, Brogan. Go grab the mirror and let's make some smoke walls.
Brogan: Dude, I have no weed.
Mexico: Don't worry. I've got you covered.
Brogan: Dude, I have no weed.
Mexico: Don't worry. I've got you covered.