nudnick (noun)

1. The main character in the movie was a nudnick who annoyed everyone with his constant complaining.

2. In the futuristic world of the science fiction novel, there were robots designed to deal with nudniks and keep them entertained.

3. The protagonist in the novel had to tolerate a nudnick neighbor who constantly interrupted their peace and quiet.

4. During World War II, soldiers often had to deal with nudniks who complained about the conditions and made the atmosphere even more difficult.