Maji-Maji
/ˌmɑːdʒi ˈmɑːdʒi/noun
Attributive Designating a local uprising (1905–7) against the colonial administration in the south-eastern part of the former German East Africa (now mainland Tanzania). Also: designating a cult associated with the rebels. Occasionally absol.: the Maji-Maji rebellion.
Origin
Early 20th century. From Swahili (vita vya) Majimaji ‘Maji-Maji (war)’ from (with disparaging reduplication) maji water, with reference to holy water that was supposed to be effective against hostile bullets.