The intentional act of leaving a fart in someone's office, bedroom or personal space, so that upon return they can enjoy the aroma.
"Let's see how Owen likes the Duster I left in his office!"
"Dude, watch John's face when he walks into the Duster I left in his room."
The act of using compressed air, to huff it and get an incredible 30 second high.
Krope hits the duster like a champ on a daily basis, but his tolerance is so high, it hardly has an effect anymore.