A person who has become addicted to hookah. Usually someone who owns their own hookah and does it very frequently. A hookaholic is someone who keeps bringing the idea up to have a hookah session.
Dang that guy has done hookah 6 days out of 7 this week he has become a total hookaholic!
One who has the uncontrolable need to train-horn innocent by standers (including but not limited to) bicyclists, pedestrians, tweakers, children, and the elderly.
I am a honkaholic because I use my train horn to blast the folowing (including but not limited to) bicyclists, pedestrians, tweakers, children, and the elderly.