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
References in periodicals archive
I DON'T believe it! one minute I'm the light of my mother Katie's life - her "ugly little alien" - and the next she's replacing me with EIGHT new pets!
Diary Of Nigel Price, Aged 8 Weeks and 3/4
It also features a photo of Victor Meldrew actor Richard Wilson - who was unaware the image was being used - with the character's catch phrase: "I don't believe it!" And you can't believe the firm's claims about the alleged investors featured on the slideshow.
Fakes from the internet; SLIDESHOW
Richard, 68 - famed for Victor's exasperated catchphrase 'I don't believe it!' - can be seen sitting for three artists in Star Portraits With Rolf Harris on BBC1 tonight.
VICTOR MELDRAWN
Maurice was, how do you say, gob-smacked: "I don't believe it! I don't believe it!" and I was tickled ...
Faces of angels: conversations with the stars of HBO's Angels in America
I don't believe it! How could boring old England trundle their way to the final?
WALES IN A WEEK ... The Rugby World Cup
THEN I DON'T BELIEVE IT! YOU'RE THE ONES WHO SCREWED ME THE FIRST TIME!
Troubletown