I don't believe it

I don't believe it

An expression of surprise or incredulity, possibly bordering on vexation. I don't believe it—I have the winning lottery ticket! So you came crawling back to us after all. I don't believe it.
See also: believe
Farlex Dictionary of Idioms.

I don't believe it!

an expression of amazement and disbelief. Bob: Tom was just elected president of the trade association! Mary: I don't believe it! Bob: They're going to build a Disney World in Moscow. Sally: I don't believe it!
See also: believe
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

I don’t beˈlieve it!

(spoken) used to say that you are surprised or annoyed about something: I don’t believe it! What are you doing here?
See also: believe
Farlex Partner Idioms Dictionary
See also:
  • I don’t believe this!
  • I don't believe it!
  • I don't believe this
  • I don't believe this!
  • get out of here
  • Get out of here!
  • get outta here
  • well, well, (well)
  • (upon) my word
  • upon my word