Related Clues:

• Passing craze
• Beanie Babies or the Hula-Hoop, e.g.
• It's temporarily in
• Mode of the moment
• Wacky WallWalker, for one
• Pokémon, for one
• Pet Rock, famously
• Passing thing
• Passing fancy
• The Macarena, e.g.
• Passing rage
• It's in for a while
• __ diet
• Temporary trend
• Sudoku, for one