Idiom of the day :- Have the constitution of an ox

Usage, examples and definition of the Idiom :-

In this expression, the word ‘constitution’ means the whole physical and mental composition of a person. That’s why people who have the constitution of an oxpossess an amazing amount of strength, particularly in being able to work hard or to overcome misfortune. ‘Albert recovered from his illness quickly. He must have the constitution of an ox.’