Definition of chocolate house in US English:
chocolate house
noun
historical
An establishment whose main business is the sale of chocolate as a hot drink.
Origin
Late 17th century; earliest use found in William Mountfort (c1664–1692), actor and playwright. From chocolate + house, after coffee-house.
Pronunciation
chocolate house
/ˈtʃɒk(ə)lət ˌhaʊs/