Somebody who has a boyband addiction is basicaly someone with a boyband fetish who can't get a man,woman or tranny, so they can't perform intercourse to the croonings of West-life.Instead they wank over boybands music videos and pictures, listening to boyband music and reading boyband interviews get them sexually aroused.

Signs of Boyband addiction include:
- A Vast collection of Westlife,boyzone and take that Cds.
- A subscription to smash hits magazine.
- Wearing a tank tops in front of other men.
- Dog tags.
- A subscription the The Box
- Serveral sticky copies of westlife's greatest hits and smash hits magazine under their bed.(c'mon blantantly obivious)
- And reading/watching anything that includes Louis walsh.

One who has a mania for music.