The word “croaker” can have a few meanings:
1. **In zoology**: It refers to a type of fish, specifically certain species of drums or croakers that are known for the characteristic croaking sounds they produce, particularly when they are caught.
2. **In informal usage**: It can refer to a person who complains or grumbles often, or to someone who predicts bad outcomes or misfortune.
3. **In a more colloquial sense**: It may also refer to a doctor, particularly in a humorous or derogatory context, implying that the doctor is not very skilled or is an old-fashioned practitioner.
Overall, the term is often used in different contexts, so its meaning can vary based on usage.
