中毒

1. Origins, structure, and basic meaning

• Structure: 中毒, read ちゅうどく, covers both poisoning by a harmful substance and excessive attachment to an activity.
• Basic usage: It can describe illness after toxic-gas exposure or, more loosely, a family member who seems unable to stop gaming.

2. Common pitfalls and similar expressions

• Poisoning and compulsive attachment
  • It covers poisoning caused by toxic gas and excessive absorption in games. In the second example the family is joking, so the wording should not be treated as a medical diagnosis.