ペコペコpekopekoぺこぺこpekopeko
1.

A state of extreme hunger where one's stomach feels empty and demands food urgently.

2.

A colloquial expression characterizing a person who is so hungry that they may feel weak or have difficulty concentrating.

3.

An informal way to describe a feeling of eagerness for food, often accompanied by a sense of discomfort due to the lack of nourishment.