Yammer (verb)

To complain or whine persistently and annoyingly.

Origin:

The word yammer is of uncertain origin. it is thought to be related to the word yammer which means to make a loud and persistent noise.

Examples:

1. She was yammering about how unfair the situation was.
2. He was yammering on and on about how much he hated his job.
3. She was always yammering about something or other.
4. He was yammering in the meeting and not letting anyone else speak.
5. The baby was yammering because it was hungry.