2. A gluttonous feast [tāo tiè shèng yàn n] is not an idiom. It can refer to numerous food collections or the presentation of various wonderful contents, such as programs and activities.
3. Gluttony is a fierce beast in the ancient legend of China, not the nine sons of the dragon. "Zuo Zhuan Wen Zhuan Gong Eighteen Years": "Yao, a guest in four doors, four fierce families, chaos, and gluttony, voted for four generations to resist charm. It is because of the collapse of Yao that the world is one, and it is one, thinking that the son of heaven, with sixteen differences and four evils. "
Gluttony is a symbol of greed, so it is often used to describe people who are insatiable or insatiable. The word gluttony is derogatory and cannot refer to a gourmet.