What is "plop?

Plop is a onomatopoeic word that is commonly used to describe the sound of something falling or dropping into water or any liquid. It can also be used to describe the sound of something heavy hitting a surface with a dull thud. The word "plop" is often used in children's books and stories to describe the sound of objects being dropped or falling. It is a simple and fun sound that can add humor or suspense to a story.