Related Clues:

• It's all the craze
• It comes and goes
• Hula hoop, e.g.
• It's in one year and out the other
• It's all the rage
• Temporary excitement
• Passing craze
• Beanie Babies or the Hula-Hoop, e.g.
• It's temporarily in
• Mode of the moment
• The Hula Hoop, once
• Wacky WallWalker, for one
• Pokémon, for one
• Pet Rock, famously
• Passing thing