Greenhouse Edit Meaning

1.

To go get stoned/high

"Hey lets go greenhouse" meaning "lets go smoke weed"

See Mac

2.

To smoke weed inside a closed environment, such as a car with the windows rolled up. Inhaling the second-hand smoke increases the effect.

We sat in the car and greenhoused a couple of joints.

See weed, smoking, marijuana, pot, ganja, mary jane, joint, blunt, bong

3.

RAF wartime slang for Cockpit cover.

"Couldn't get the greenhouse open"

See Gari