The Chinese word "酒足饭饱" is formed by juxtaposing two two-character phrases: "酒足", meaning wine is sufficient, and "饭饱", meaning food is full. Each phrase pairs a noun (酒 for wine, 饭 for food) with an adjective (足 for satisfied, 饱 for satiated) to describe contentment from drinking and eating, resulting in a compound idiom that literally conveys being fully satiated after a meal.