- Quack cluck cluck is the sound that a duck makes. It is also the sound that a chicken makes.
- The word "quack" is onomatopoeia, which is a word that imitates the sound it describes.
- The word "cluck" is also onomatopoeia. It imitates the sound of a hen calling her chicks.
- The word "cluck" can also be used as a verb, meaning "to make a clucking sound."
- The phrase "quack cluck cluck" can be used to describe the sound of ducks and chickens quacking and clucking at the same time.