curb service noun2 •(US) An exchange, such as ordering and delivery of fast food, which occurs when a worker comes outside to interact with a customer who remains within their stopped vehicle.Despite a reported police crackdown, young men selling illegal fireworks were providing their usual Fourth of July curb service to passing motorists yesterday. — 1987 •(US) Convenient pickup of one's items, such as garbage or baggage, from the roadside; convenient delivery of items to the roadside near one's location.George Barry, the dump's manager, found $8,500 in negotiable securities. He delivered them to the door of the woman who had thrown them out, a kind of reverse curb service. — 1985