vulgarian

🇬🇧/vʌlˈɡeəriən/ 🇺🇸/vʌlˈɡeriən/
a vulgar person, esp one who is rich or has pretensions to good taste 粗俗的财主; 暴发户

noun [专属名词] 俗人;俗物;庸俗的暴发户

Either use a vulgarian or don't. 俗人可用可不用;

单词造句:
网友用 “Vulgarian” 造句精选
Only a vulgarian talks ceaselessly about how much this or that cost him. 只有暴发户才会喋喋不休地谈论这个或那个花了他多少钱。
I'm on a vulgarian Ah! 我丫就一俗物!