crown green bowls
noun /ˌkraʊn ɡriːn ˈbəʊlz/
/ˌkraʊn ɡriːn ˈbəʊlz/
[uncountable]- a form of the game of bowls that is played on an area of grass with a slightly raised centre, instead of on a flat surface. It is played especially in the north of England.