My father has poker addiction. What does this mean?

Can't stop playing. Patients who have an addiction like playing games or watching videos are so ttracted to continuing that they can play for hours at a time even if the have work to do or friends or family to interact with.'some with serious addictions even play for hours without eation or sleeping.
Poker addiction. Poker addiction is common. Your father gets intense pleasure playing poker. Off the table, he is anxious, preoccupied with the thoughts of going back to play, and at the level of addiction, he puts top priority on poker over all other role play and obligations.