Final answer:
White flight refers to white people moving to suburbs and leaving cities populated by ethnic and racial minorities. It was a phenomenon that occurred in the mid-20th century in the United States.
Step-by-step explanation:
The phrase "white flight" refers to white people moving to suburbs, leaving cities populated by ethnic and racial minorities. It specifically describes the phenomenon that occurred during the mid-20th century in the United States, where many white families moved out of urban areas and into suburban neighborhoods, leading to a demographic shift.
Learn more about White flight