Definition of coochy coo in English:

coochy coo

(also coochie coo, koochie coo, koochie koo)

Pronunciation /ˌkuːtʃɪ ˈkuː/

exclamation

  • Used to elicit a smile or laughter from a baby, especially in combination with tickling.

Origin

Late 19th century; earliest use found in The Oakland Tribune. Origin uncertain; perhaps imitative of a baby's gurgling; perhaps compare coo.