don't make a federal case (out) of (something)

don't make a federal case (out) of (something)

Don't exaggerate or build up the importance of something; don't make a big deal out of something. The phrase is often used to complain that someone is exaggerating a problem or alleged wrongdoing. So I ate your leftovers. Geez, don't make a federal case out of it! A: "I know you borrowed my new sweater without asking me first." B: "Oh, come on, don't make a federal case out of it."
See also: case, federal, make, of
Farlex Dictionary of Idioms.

Don’t make a federal case out of it!

sent. Don’t make such a fuss!; This isn’t as important as you are making it. So, I dropped a whole dozen eggs! I’ll clean it up. Don’t make a federal case out of it!
See also: case, federal, make, of, out
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • Don’t make a federal case out of it!
  • bathwater
  • don't bet on it
  • don't cry before you are hurt
  • a thing you don't want is dear at any price
  • don't go there
  • class (someone or something) with (someone or something)
  • class with
  • classes
  • don't give up the ship