Chicken is not an idiom, because an idiom is a phrase. Chicken, meaning afraid or cowardly, is a slang term. Slang is when you have a word (sometimes a couple of words) that local people use in a different way from the accepted meaning. Americans call someone 'chicken' not because they are domesticated birds that lay eggs and taste good fried, but because they act afraid.
The idiom "no spring chicken" originated in the early 18th century and refers to someone who is no longer young or youthful. It alludes to chickens being considered most desirable as food when they are young and tender in the spring.
A spring chicken is the farmer's term for one born in the latest spring. This idiom is saying you're not very young.
A spring chicken is the farmer's term for one born in the latest spring. This idiom is saying you're not very young.
That chicken really is finger-licking good!
This is not an idiom, so it means what it says. Something is as rare or hard to find as teeth on a female chicken (or any chicken) - chickens are birds, and do not have teeth.
Idiom is correct.
It's not an idiom because you can figure out the meaning. Roosters crow to show the other chicken's who's the boss, so crowing means you're proud of yourself. Something worth crowing about would be something you deserve to be proud about.
what is a idiom about a cat
These days, the idiom "chicken feed" means a small amount of money. The term is believed to have come about because small coins such as pennies and nickels were commonplace and not worth much - rather like the seeds fed to chickens. The idiom used to have another meaning as well. The story goes that, during World War II, there were German spies who are double agents, working for both their own country and the British Government. In order for the British government to make Germany believe its spies were gathering useful information, it would "feed" them some false information - called chickenfeed.
That phrase is used to drive home the point that you would be dead. Ducks are regularly killed by hunters and predatory animals. Or it is used as a comeback to being called a chicken. Example: "I'd rather be a live chicken than a dead duck!"
"To be" is not an idiom - it's a verb.
The idiom "apple shiner" means the teacher's pet.