E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Pococurante (5 syl.).
Insouciant, devil-may-care, easy-go-lucky. As the Pococurante Guardsman (the imperturbable and impassive ). Also used for one who in argument leaves the main gist and rides off on some minor and indifferent point.