Definition:
"Polly fish," more commonly known as "parrotfish," refers to a type of colorful tropical fish that have beak-like mouths. These mouths are formed by the fusion of teeth, which helps them eat hard-shelled organisms like coral and algae.
In scientific discussions or when exploring marine biology, you might refer to their role in the ecosystem, such as: - "Parrotfish play a crucial role in maintaining coral reef health by grazing on algae."
There aren't specific idioms or phrasal verbs directly related to "polly fish," but you might hear phrases involving "fish" in general, such as: - "There are plenty of fish in the sea" (meaning there are many other opportunities or options). - "Big fish in a small pond" (referring to someone who is important in a small area).
"Polly fish" or parrotfish are colorful, tropical fish known for their unique beak-like mouths. They are important to marine ecosystems and are often seen in coral reefs.