If you've ever watched a dog chase its tail you have noted that it expends a lot of energy running around in circles without achieving a worthwhile objective. What is the dog going to do after it catches its tail? It means that you are wasting your time and effort in a useless pursuit.
After hours of struggling through the dense jungle, on what was turning out to be a fruitless search for the lost city, I rather began to suspect that I'd been sent on a wild goose chase.
It's not an idiom. The definition of "at stake" is what is being risked in the situation or venture. A stake is a share or ownership in something.
The idiom "shell out" means to pay a sum of money, usually unwillingly or with reluctance. It implies spending money on something, often more than anticipated or desired.
There is no literal idiom -- an idiom is a phrase that seems to mean one thing but actually means something else. The word "literal" means to take the words exactly as they seem to be.An idiom is a phrase particular to a language that is accepted for its figurative meaning, as in "That amazing shot blew me away." Everyone understands that this person means he was amazed. A literal idiom would be the usually humorous thing that happens when you take the idiom for its word for word, not accepted, meaning. That would mean that somehow the amazing shot actually created the air mass necessary to blow this guy away.
It means to be intelligent. The brain is between the ears.
This isn't an idiom - it's talking about some animal with their tail held high, flying behind them.
There isn't an idiom "dog's tail." There are several idioms about dogs and tails, but I'm not sure which one you're thinking of.
It is a idiom.
It means having you are having regular sex.
It means fled, or ran away. This is a straightforward idiom derived from seeing the tail of an animal as it runs away. To "turn tail" is to turn around and leave, which would typically be the response of a weaker animal to another, stronger animal.
It's not an idiom - it's a pretty good vivid description of someone trying to pretend to be something they are not. Imagine a peacock with fake tail feathers attached.
It's not really an idiom. It means "what are you thinking about."
RFP is not an idiom. It's an abbreviation.
It is not an idiom, it means your nose is itching.
After hours of struggling through the dense jungle, on what was turning out to be a fruitless search for the lost city, I rather began to suspect that I'd been sent on a wild goose chase.
It's not an idiom. It means the tip of your nostril.
idiom means expression like a page in a book