Jim Crow
noun /ˌdʒɪm ˈkrəʊ/
/ˌdʒɪm ˈkrəʊ/
[uncountable]- the former practice in the US of using laws that allowed black people to be treated unfairly and kept separate from white people, for example in schoolsWord OriginFrom the title of a song that was sung by white entertainers who tried to look and sound like African Americans.