Definition of street dance in US English:

street dance

noun

  • 1A social gathering at which people dance in the street.

    ‘revelers mingle to the pulse of rock music at a huge street dance held in downtown Edmunston’
  • 2A style of dancing to hip-hop and other popular music originating among amateur dancers in cities.

    ‘since the R&B explosion street dance has become a burgeoning youth craze’
    as modifier ‘a local street dance crew’