nudnick
/ˈnʊdnɪk/
noun
- A person who is annoying or bothersome, especially by being persistent or nagging.
- She tried to ignore the nudnick at the party who wouldn't stop talking about his stamp collection.
- My little brother can be a real nudnick when he keeps asking for a turn on the video game.
- The office nudnick always interrupts meetings with irrelevant questions.