coster

/K AO1 S T ER0/
noun
  1. 1

    Any of various nymphalid butterflies of the genus Acraea.

noun
  1. 1

    A trader who sells fruit and vegetables from a cart or barrow in the street.

Source: https://en.wiktionary.org/wiki/coster, https://en.wiktionary.org/wiki/costermonger