What is the meaning of Drop_off?

To fall asleep.

To deliver; to deposit or leave; to allow passengers to alight.

To fall off:

  1. To drop from, fall from.

    To drop from, fall from.

    To drop, fall.

    To end a connection with a telephone queue, either by hanging up or after being served or processed.

    To lessen or reduce.

    To die.

    Source: wiktionary.org