新興成金、新興上流階級の人々

a person who has recently gained wealth or social status, and is often considered to lack the proper manners associated with it

characteristic of someone who has risen economically or socially but lacks the social skills appropriate for this new position

経済的または社会的に成り上がったが、その新しい地位に見合った社会的スキルを欠いている人の特徴