倚老卖老

1. • to flaunt one's seniority to rely on one's age or length of experience to control or belittle others

     idiom

Character by character

• 倚(yǐ)rely upon
• 老(lǎo)prefix used before the surname of a person or a numeral indicating the order of birth of the children in a family or to indicate affection or familiarity
• 卖(mài)show off or flaunt
• 老(lǎo)prefix used before the surname of a person or a numeral indicating the order of birth of the children in a family or to indicate affection or familiarity