Definition of green channel in English:

green channel

noun

  • (at a customs area in an airport or port) the passage which should be taken by arriving passengers who have no goods to declare.

    • ‘The teenage footballer's wife-in-training walked through the green channel at customs, apparently unaware that she had exceeded the limit on goods purchased abroad by almost a hundredfold.’
    • ‘I blush every time I come through the green channel at Customs.’