prattler

Plural: prattlers

Noun

• One who babbles or talks foolishly.
• someone who speaks in a childish way
• One who prattles or is inclined to do so.

Examples

• The patrolman had the misfortune to be assigned a beat that ran past the house of Ms. McDougall, a notorious prattler and neighborhood gossip.
• The PRATTLER at the table spent more time discussing previous games than focusing on the current Scrabble move.