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to chase one's (own) tail
01
correr en círculos
to try hard yet achieve very little or nothing at all
![to [chase] {one's} (own|) tail definition and meaning](https://cdn.langeek.co/photo/40989/original/?type=jpeg "to [chase] {one's} (own|) tail definition and meaning")
What is the origin of the idiom "chase one's tail" and when to use it?
The origin of the idiom "chase one's tail" is related to the behavior of dogs, who may chase their own tails in circles without ever catching them. The phrase has been in use in English since at least the early 20th century, and it is often applied to situations where someone is engaging in fruitless activity, such as repeatedly trying to solve a problem using the same ineffective approach. In general, the phrase is used to describe a situation where someone is expending a lot of energy without making any real progress towards their goals.
Ejemplo
The playful dog chased its tail in circles.
The cat's attempt to chase its own tail was both adorable and ridiculous.
Look, the dog is chasing its tail again.
He's just chasing his own tail.
The sight of the puppy chasing its tail filled the room with mirth and laughter.
