chacha noun3 •(India) An uncle, especially one's father's younger brother.She also admires her chachas—Sajjan's engineering bent of mind, Ratan's financial acumen and Naveen's abilities as a great communicator. — 2011 •A traditional Georgian clear strong liquor distilled from pomace. •A type of cylindrical metal rattle, derived from an instrument in the Haitian musical tradition, and used to play rhythm in certain Cuban genres (and in other nearby countries). formsChaChas · chachas