Definition of be off in English:

be off

phrasal verb

  • Go away; leave.

    ‘he was anxious to be off’
    • ‘ be off with you!’
    • ‘I've just had a call to say that things have moved on a bit, so we might be off again tomorrow morning.’
    • ‘And now be off with you, for I am going to sleep.’
    • ‘As usual I was keen to be off so we arrived at the bus station with 15 minutes to wait for the bus up to the airport.’
    go away, depart, leave, take off, get out, get out of my sight