Not a drink at sonic

When you eat dirt for the first time and leave your family to build a shack in the woods

A scooper-dooper is a pail, much like a pail kids use in the sandbox, that is picks up fecal matter stuck on the floor and/or wall.

If someone poops and misses the toilet, or just wants to be a douche and poops on the wall, then you use a scooper-duper to scrape it off the floor or wall if stuck, or if not stuck then just pick it up.

The scooper-duper is a filthy pail that much resembles a dust pan, and has probably not been used in over a year (depending on how much poop lands on your floor or walls), it is slicked over dusty and filthy, and is probably stored in a cubby hole, or closet that has been previously infested with mold, or rats.