fad

US /fæd/
UK /fæd/
"fad" picture
1.

時尚, 一時風尚, 狂熱

an intense and widely shared enthusiasm for something, especially one that is short-lived and without basis in the object's qualities; a craze.

:
The hula hoop was a popular fad in the 1950s.
呼啦圈是20世紀50年代的一種流行時尚
Social media challenges often turn into short-lived fads.
社交媒體挑戰常常變成短暫的時尚