Related Clues:

• Enthusiasm, and then some
• Mood rings or the Macarena, once
• Hyperactive excitement
• Hot fad
• Pet rocks, e.g.
• Cabbage Patch Kids or Beanie Babies
• Hula hoop, once
• Crosswords in the 1920s, e.g.
• Troll dolls, once
• Beatles craze, e.g.
• Tongue tattoos, e.g.
• Recent developments
• Phone booth stuffing, e.g.
• Something going out shortly
• Here-today-gone-tomorrow trend