scratch definition, from Internet Connection, Inc.

1. [from scratchpad] adj. Describes a data structure or recording medium attached to a machine for testing or temporary-use purposes; one that can be scribbled on without loss. Usually in the combining forms scratch memory, scratch register, scratch disk, scratch tape, scratch volume. See also scratch monkey.

2. [primarily IBM, also Commodore] vt. To delete (as in a file).