round file

Noun

 * 1) A metal file with a circular or rounded shape, used for shaping round surfaces.
 * 2)  The trash; the wastebasket.
 * My junk mail goes straight into the round file the moment it arrives.
 * 1)  The trash; the wastebasket.
 * My junk mail goes straight into the round file the moment it arrives.
 * My junk mail goes straight into the round file the moment it arrives.