Here's a breakdown of the history and usage:
* Chicken: Chickens are known for their timid nature and tendency to flee from danger. This association with cowardice dates back to ancient times.
* Yellow belly: The underside of a chicken is often yellow, making it a visible characteristic.
* Metaphorical usage: The phrase "yellow-bellied" evolved as a metaphor to describe someone who acts like a chicken, running away from danger or exhibiting fear.
* Figurative meaning: The term is now used to describe someone who is timid, cowardly, or lacking in courage.
It's important to note that the term "yellow-bellied" can be considered offensive and derogatory. While it was initially used to describe a physical characteristic, it has evolved to be a negative label for individuals.
It's best to avoid using this phrase and consider more respectful and accurate language to describe someone's behavior.