Question : Select the most appropriate meaning of the given idiom.
Long in the tooth
Option 1: The show has come to an end
Option 2: Be optimistic, even difficult times will lead to better days
Option 3: To be old, often too old to do something
Option 4: Killing of a certain ethnic or religious group on a massive scale
Correct Answer: To be old, often too old to do something
Solution : The third option is the correct choice.
This idiom, long in the tooth is often used to humorously or colloquially describe someone who is ageing or has been around for a long time, implying that they may be getting too old for certain activities or situations.
Therefore, the correct answer is, to be old, often too old to do something.