This children’s saying explains the idiom: “birds of a feather” are similar beings. When applied to people, we mean that people that are very alike are “birds of a feather,” and therefore, “flock together.”
This means that people who are alike tend to assemble in groups. It’s a basic statement about human behavior.
To “be in the dog house” is to proverbially be banished from the home – that is, the house for human beings – and forced to take shelter with the family dog in the “dog house,” a tiny shelter for a dog built outside.
“Being in the dog house” has become a general metaphor for being in trouble with a person, such as having upset one’s wife.
In the African wilderness, a lion – particularly the male lion that leads a “pride” (group of lions) – has the first choice of feeding at the corpse of an animal, whether or not the lion killed the animal itself. Why? Because the lion’s stronger than hyenas or other predators.
To “get the lion’s share” is to receive the largest portion of something.
Cats are very individualistic creatures. The entire idea of “herding” a group of cats seems laughable; they aren’t seeking to follow each other.
“Herding cats” is an expression for the difficulty of getting strong individuals to do anything together. Today, it is famously applied to the Senate of the United States. As in, “As difficult as herding cats..”
A pig is considered so naturally ugly that “putting lipstick on a pig” is a waste of effort to make the pig look pretty.
The expression is used to say that it is futile and worthless to try to make something (in polite conversation, always a thing , not a person!) look better when honesty demands it be considered ugly. Applied to: Lying to improve appearances