not be the end of the world

be (not) the end of the world

To be a very big deal or problem. Often used in the negative to describe a situation that one believes is being exaggerated. I know you're upset that you failed a test, but, really, it's not the end of the world! You might think that not getting your driver's license today is the end of the world, but it's not. In five years, you won't even remember this day!
See also: end, of, world
Farlex Dictionary of Idioms.

not be the ˌend of the ˈworld

(spoken) not be a disaster: It wouldn’t be the end of the world if you couldn’t get into college. I’m sure you’d be able to find a good job anyway. Why are you so upset? It’s not the end of the world.
See also: end, not, of, world
Farlex Partner Idioms Dictionary
See also:
  • be (not) the end of the world
  • end of the world
  • a big head
  • describe (someone or something) to (someone)
  • describe to
  • leez
  • Puh
  • Puh-leez!
  • puh-leeze
  • 0-day