fasten down

Verb

 * 1) To secure something so that it will not be moved away.
 * 2)  To force a firm answer (from someone); to pin down.
 * 1)  To force a firm answer (from someone); to pin down.
 * 1)  To force a firm answer (from someone); to pin down.
 * 1)  To force a firm answer (from someone); to pin down.