What is "kalingalinga"

Kalingalinga is a low-income, high-density settlement east of Lusaka, in Zambia. , it comprised 25,000 to 30,000 residents; a very poor area, it borders the wealthier townships of Mtendere and Kabulonga, and many of its occupants are poor people who were discouraged from settling in Lusaka and moved as squatters to outlying regions of the city.