Garrulous
/ˈɡær.ə.ləs/ adjective mediumTalking excessively, especially about unimportant or trivial things.
The garrulous cab driver talked nonstop about his childhood for the entire forty-minute ride.
Memory Trick
Picture a chatterbox who never runs out of stories, jumping from topic to topic without ever pausing for breath — that nonstop chatter is garrulous.