From Longman Dictionary of Contemporary Englishcha-chacha-cha /ˈtʃɑː ʃɑː/ (also cha-cha-cha) noun [countable] APDa dance from South America with small fast steps
Examples from the Corpus
cha-cha• During informal moments, Jiang has been known to do the cha-cha.Origin cha-cha (1900-2000) American Spanish cha-cha-cha 