Question of the Day #750

You know, our audience grew up with us until the videos, and they were beginning to get a little long in the tooth.

From the headline of this article at Rolling Stone.

上記の文で、long in the toothの意味は？
In the sentence above, what does "long in the tooth" mean?

答えは、コメントに書いてください。
Write your answer in the Comments.

明日、ここに答えを書きます。
I will add the answer and other remarks here tomorrow.

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解答

意味：
英辞郎によると、

《be ～》年老いている、中年過ぎである

Answer

According to the Cambridge Dictionary :

to be old, often too old to do something

語源

英辞郎によると、

年老いた馬は歯茎が後退して（下がって）歯が長く見えるところから。

Etymology

According to The Free Dictionary,

Animals' teeth, especially those of horses, are thought to be an indicator of age. As animals age, their gums recede, and their teeth look longer.

Examples

• He's a little long in the tooth to be wearing shorts, don't you think?
• Australia were there for the picking - too many of them were a bit long in the tooth. Times, Sunday Times (2015)
• That actor is getting a little long in the tooth to play the romantic lead.
• Our poor cat is so long in the tooth that he struggles just walking around the house these days.
• She's a little long in the tooth to still be working—do you think she'll ever retire?

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