What is "kibirigwi"

Kibirigwi is a settlement in Kenya's Kirinyaga County of the former Central Province. The township is located along the Nairobi, Nyeri highway within Ndia Constituency. Ragati River also passes within parts of Kibirigwi area. Kibirigwi neighbors Kibingoti and Karatina town, the former being in Kirinyaga and the latter being in Nyeri County.