Babble/ˈbæbl/ Definition 1 of 5Pro Tip 1/2Fast and Unclear Used to describe speech that's hurried and hard to decode due to excitement or confusion. Her nerves made her babble during the presentation. Pro Tip 2/2Emotional Overload Often happens when someone is overwhelmed with emotions like joy or fear. Seeing the puppy, the child started to babble with joy.