'Cachou' definitions:

Definition of 'cachou'

(from WordNet)
noun
A scented lozenge used to sweeten the breath (e.g. to conceal the odor of tobacco)

Definition of 'Cachou'

From: GCIDE
  • Cachou \Ca`chou"\, n. [F. See Cashoo.] A silvered aromatic pill, used to correct the odor of the breath. [1913 Webster]