No lie!

no lie

It is the truth. (Can be posed as a question as well as a response.) A: "You really said that to him?" B: "No lie—you should have seen his face when I did!" A: "They said I'd be getting a 20% bonus this year!" B: "No lie? Wow, that's fantastic!"
See also: lie, no
Farlex Dictionary of Idioms.

No lie!

exclam. Honest!; No kidding! I was there on time. No lie! Ask my sister.
See also: no
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • no lie
  • No lie?
  • a lie has no legs
  • lie like a rug
  • give the lie to
  • give the lie to (something)
  • give the lie to something
  • give the lie to, to
  • lie through (one's) teeth
  • lie through one's teeth