What is peckish?

Peckish is an adjective used to describe a feeling of slight hunger or the desire to eat a small snack. It is often used in a casual or informal way, to describe a feeling of low-level hunger that is not enough to require a full meal. The term "peckish" is commonly used in British English, but is also understood in other English-speaking countries. There are no medical or nutritional connotations associated with the term, and it is not a diagnostic term used in clinical settings. It is simply a word used to describe a common experience of mild hunger or appetite.