trendy       
 adjective  informal uk/ˈtren.di/ us/ˈtren.di/
C1 时髦的;受新潮思想影响的
modern and influenced by the most recent fashions or ideas
  trendy clothes 时髦服装 
 a trendy nightclub 时髦的夜总会 
 He writes for some trendy magazine for the under-30s. 他给一本面向30岁以下读者的时尚杂志撰稿。 
 - More examples
 - Lisette came back from holiday in New York with a trendy asymmetric haircut.
 - He may be old hat among the trendy younger generation, but his shows draw more viewers than any other comedian.
 - Shapur's restaurant is full every night as trendy Londoners enjoy the wonders of his young protégé, chef Glyn Fussell.
 
trendy       
noun [ C ]  informal mainly disapproving uk/ˈtren.di/ us/ˈtren.di/
 爱时髦的人;赶时髦的人
a person who is very influenced by the most recent ideas and fashions
  This is where all the North London trendies go for a night out. 这是伦敦北部所有爱时髦的人晚上出没的地方。