To hold a blunt or joint for longer than the typically allotted time. This is usually a result from being really high and not realizing that you should have passed the blunt a while ago.
"Dude you're parking it. How long are you going to sit there with that thing?"
"You've been parking it for a while. It's almost burned down"
When you arrive at a public event, (movie, piano recital, PTA meeting, etc.) and can’tbare to make it through sober, so you full send hard liquor in the parking lot after you arrive to get a nice drunk on.
Hey honey, do you want to parking lot it at Emily’s dance recital? It’s gonna be a shit show.