yuanyang noun2 •A pair of mandarin ducks, one male and one female, as a symbol of faithful union.Yuanyang, the Mandarin duck, mates for life, and is hence a symbol of conjugal felicity. — 2006 •Synonym of yuenyeung.Yuanyang, sometimes also called Ying Yong, is a popular beverage in Hong Kong, made of a mixture of coffee and Hong-style milk tea. — 2012 formsyuanyangs