English Idioms: Beat a dead horse

English Idioms About “Animals”
Idiom: Beat a dead horse
Meaning: (Also flog a dead horse.) To persist or continue far beyond any purpose, interest or reason.
Example: If you continue talking about something that cannot be changed, you are beating a dead horse.

English Idioms: A life-saver

English Idioms About “Life”
Idiom: A life-saver
Meaning: This phrase is used to refer to something or someone that saves a person in a difficult situation or critical moment.
Example: Thank you so much for your help. You’re a real lifesaver!