Curb

Curb is designed to facilitate emptying the trash from removable media such as USB thumb drives.

When files are deleted on removable media, it is stored in a special trash folder on the media. These files take up room, robbing your drive of free space. Ordinarily to remove these files the user must empty their own trash, which includes files you’ve deleted on the local system. This is not always desirable. With Curb, emptying trash from a USB key becomes as easy as drag and drop. Drop any number of mounted USB keys onto Curb and each one will have the trash removed, all without losing your local trash.