As a linguistic expert with a deep understanding of idiomatic expressions and their origins, I can provide an insightful explanation of the phrase "long in the tooth." This phrase has a rich history and is rooted in the observation of a natural phenomenon in horses.

The phrase "long in the tooth" is used to describe someone who is getting older or past their prime. It originates from the fact that as horses age, their teeth, which are constantly grinding food, wear down and their gums recede. This results in their teeth appearing longer than they were when the horse was younger. This physical change is quite noticeable and serves as a clear indicator of the horse's age.

The use of this phrase in English dates back to the 17th century, and it has been a part of the language for centuries. It's a metaphorical way of saying that someone is showing signs of age, much like the aging horse's teeth. The phrase is often used in a light-hearted or colloquial manner, and it can be applied to people or even to things that have been around for a long time and are starting to show signs of wear and tear.

It's important to note that while the phrase is quite descriptive and vivid, it should be used with sensitivity, as it can carry connotations of age-related decline or infirmity. It's also worth mentioning that the phrase is more commonly found in British English than in American English, where other expressions might be used to convey a similar meaning.

The phrase can also be used to describe objects or situations that have been around for a long time and are showing signs of their age. For example, one might refer to an old car as being "long in the tooth" if it's starting to break down or show other signs of age.

In summary, "long in the tooth" is a colorful and historical idiom that paints a picture of aging through the lens of a horse's teeth. It's a testament to the way language evolves and incorporates observations from nature into everyday speech. The phrase is a reminder of the cyclical nature of life and the inevitable passage of time, and it serves as a poignant reminder to appreciate the present moment.

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long in the tooth That horses' gums recede and their teeth appear longer as they grow older, owing to their constant grinding of their food is the idea behind this ancient folk phrase, which means one is getting on in years.Jun 27, 2015read more >>