Super Pop is a brand of popcorn.
Shaggy & Scooby-Doo Get A Clue!
On being told that a holgraphic transmission through Robi was "like a movie" Scooby-Doo said he would get the popcorn. He put it into Robi's head, popping the corn but disrupting the transmission. Once it was done it voilently exploded from his head.