Related Clues:
- Enthusiasm gone too far
- Wildness
- Excessive interest
- Excessively intense enthusiasm
- Beatles phenomenon, e.g.
- Cacoëthes
- Intense obsession
- Reaction to the Beatles, once
- Something caused by the Beatles or Pokemon
- It's all the rage
- Unreasonable enthusiasm
- The Hula Hoop, once
- Insanity
- Passing fancy
- It surrounded 18-Down in 1996