jackanory
A person who talks so much, they might as well be a f***ing water fountain.
My uncle is a jackanory. He talks nonstop at family dinners. I almost died from the noise.
At the party, my friend was a jackanory. He talked about his pet goldfish for an hour. I wanted to scream.
My teacher called me a jackanory because I talked too much. I told her, 'I didn’t talk. I explained.'