- A significant culture, political, or social exchange arising from the actions or influence of young people
Usage: Marion’s rebelliousness may no longer be connected to a youthquake, but it still means something.
1965: From youth + quake, on the pattern of earthquake. The first recorded use is from the January 1965 edition of the magazine Vogue, describing the upsurge of youth culture particularly in fashion in London that occurred in the 1960s.
The word was apparently coined by Diana Vreeland, then editor-in-chief of Vogue.