nouninformal, humorous, derogatory, rare, historical British
(The type of) a boisterous or jovial young Cockney woman, typically the notional wife or girlfriend of 'Arry.
Popularized in captions written by E. J. Milliken for cartoons in Punch from the 1870s to late 1890s.
Late 19th century; earliest use found in Saturday Review. Representing a Cockney pronunciation of Harriet, pet form of the female forename Henriette, used in this sense as a female counterpart of 'Arry.