Definition: Hubbubs are a type of rhythmic laughter that is commonly heard during the final stages of childbirth, particularly in the third trimester. They may be accompanied by other sounds such as gasps, moans, and hisses, which can add to the overall emotional experience for both parents and their newborns. Hubbubs are often associated with comfort, relaxation, and anticipation, making them a popular way to celebrate the birth of a new life.