Fad 时尚潮流
(重定向自Trendy)
A fad or trend or craze is any form of collective behavior that develops within a culture or social group and which impulse is followed enthusiastically by a group of people for a finite period of time.
Similar to habits or customs but less durable, fads often result from an activity or behavior being perceived as emotionally popular or exciting within a peer group or being deemed "cool" as often promoted by social networks A fad is said to "catch on" when the number of people adopting it begins to increase to the point of being noteworthy. Fads often fade quickly when the pe****tion of novelty is gone.