Definition: Euro(game)
Another quip from a post on Boardgamegeek:
A Euro is a marketing construct that describes a game aimed at the demographic of a young(er) suburban and culturally active/aware couple, possibly with 1-2 kids in the 6-14 age range, who wish to play games as a family or couple and/or socially with a similar couple. This well-defined, identified and understood market is the focus of many designers and publishers.