to hotbox one's vehicle, such as scooby and shaggy did in the show "Scooby Doo". Doo being short for doobies of course and the fact that whenever they leave the mystery machine, smoke seems to emit from it. scooby snacks of course referring to the munchies, along with the two feet tall sandwiches they always ate.
"Pat what is up bro?"
"I just mystery machined it before i got here, so im feelin pretty satisfactory."
Name of the vehicle from the TV show and Movie "Scooby Doo" that was once thought to be the housing for an evil kiddy drug dealing scheme is now thought to have been used for loli child rape by Scooby and their sinister gang. This is reported to have involved dog beastiality as well as using soft sqeeky sex toys and other rubber play things. Kids are most often lured with cookies.
Rumors also speculate about a possible connection between this and Pedobear says 4chan and it's loyal members.
"Come on tommy! They have free cookies in the Mystery Machine!"