What is the meaning of Hang_up?

To put up to hang.

To terminate a telephone call, originally by hanging the receiver on its hook or cradle thereby automatically disconnecting the line.

To stop talking.

To keep delayed, suspended, held up, or stuck.

To rob or mug (someone).

To arrest (someone); to send (someone) to prison.

To quit (something); to give up or stop doing (something); to abandon (something).

To distress, disadvantage or harm (someone).

Source: wiktionary.org