barrow boy

/B AE1 R OW0 B OY0/
noun
  1. 1

    A boy or man who sells goods – especially fruit or vegetables – from a barrow; a costermonger.

  2. 2

    By extension, a financial industry worker from a working class or lower middle class family background.

Source: https://en.wiktionary.org/wiki/barrow%20boy