Dark dark

Mummy: Today woke up and found out it's a rainy day. I was telling Chloe that the sky is dark dark, raining. Guess what action she gave me, she repeated after me "Rain rain, dark dark". Before I can nod my head, she put her 2 hands at the waist there and moved her hands, and said "quack quack". She misunderstood my "dark" as "duck". I laughed and laughed.