Meaning of hot-cha-cha in English:

hot-cha-cha

Pronunciation /ˌhɒtˌtʃɑːˈtʃɑː/

noun

(also ha-cha-cha)
  • A cry of ‘hot-cha-cha’; an expression of energy and high spirits.

    Frequently used humorously in combination with the traditional refrain hey nonny nonny.

Origin

1920s (in an earlier sense). Apparently from hotcha, with reduplication of the second syllable.