It means to stop whatever you are doing and go rest, go home, sleep.
Answer:
Owner of a missing cat
Explanation:
you would use a because “a" is used before words that start with a consonant sound and "an" is used before words that start with a vowel sound. So we would say "a cat" but "an eagle"
The answer would be hyperbole because it is an extreme exageration. I hope this helps! if you need the others defined let me know