don't you dare!

don't you dare

An emphatic way to tell someone not to do something. Don't you dare say something vulgar like that to your mother! Don't you dare touch that autographed baseball—it's worth a lot of money!
See also: dare
Farlex Dictionary of Idioms.

don’t you ˈdare (do something)!

(spoken) used to tell somebody strongly not to do something: ‘I’ll tell her about it.’ ‘Don’t you dare!’ Don’t you dare say anything to anybody.
Farlex Partner Idioms Dictionary
See also:
  • don't you dare
  • pitch (one) a line
  • pitch a line/story/yarn
  • yarn
  • pitch (one) a story
  • spin (one) a line
  • spin (one) a story
  • spin (one) a tale
  • spin a yarn/tale
  • pitch (one) a yarn
References in periodicals archive
M2 PRESSWIRE-August 13, 2019-: Filipina widow Red Tan launches empowering single 'Don't You Dare!'
Filipina widow Red Tan launches empowering single 'Don't You Dare!'
But that would completely defeat the object of playing - so don't you dare!
APP of the week
As Giles Nelson, defending, stood up to speak for his client, Judge Tabor said: "Don't you dare!"
Man fails to attend court - again
As Giles Nelson, defending, stood up to speak for his client, Judge Tabor said: "Don't you dare!" and issued a warrant for Jones's arrest, without bail.
Absence sparks fury at court
'And she said, 'Don't you dare! Your nana will go mad if she sees you half-naked in a lads' mag'.
OFFERED COKE AT 13
More than 13,000 school employees participated in a "Don't You Dare!" rally outside district headquarters.
Contract eases cuts
"Podge said to her,'What would you do if we decided to show your sex tape?' "And Abi answered, 'I'd probably sue you - don't you dare!' The boys pretended that they had to go ahead and play the clip - Abi was horrified.
Abi sex tape fury; BEAUTY STORMS OUT OF RTE STUDIO AFTER PODGE AND RODGE PLAY 'CLIP'