blabber

verb
UK /ˈblæb.ər/
US /ˈblæb.ɚ/

To talk and talk without stopping.

My little brother blabbers all through dinner.


OTHER MEANINGS

2. To tell a secret by talking too much.

Don't blabber about the surprise party!

3. Foolish or silly talk.

All that blabber about aliens made no sense.

4. A person who talks too much.

He's such a blabber that everyone knows his news first.