What idiom can be used define a the situation where someone is telling something without thinking? Possibly a slang definition.

Is "Don't say bullshit" a possible answer?

Update: I fount the answer, "Cut the crap!", of course the answers below are correct too.

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    I hope I got the gist of it with the edit. – Hellion Apr 25 '14 at 16:49
  • He stuck/put/stuffed/jammed a foot in his mouth. (I suggest this idiom for your purpose.) He spoke out of turn. He was leaping without looking. He played it fast and loose. Have a nice day. – Apple Freejeans Apr 25 '14 at 16:53
  • @APrejean you can always re-open your answer and correct it. The first suggestion was a good one, you only needed to change the verb. – Mari-Lou A Apr 25 '14 at 17:00
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    @APrejean Terrorism? That's not funny in the least. I would urge you to reconsider, because I previously stated the idiom is a good one, and the classic version is "I put my foot in it/my mouth" then you can suggest alternative verbs for variety's sake. Please, do not take offence where none was meant. – Mari-Lou A Apr 25 '14 at 17:11
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    Trump-like perhaps ? – k1eran May 4 '18 at 1:07

blurt - to say (something) suddenly and without thinking about how people will react

Although the Merriam-Webster definition doesn't actually mention it, blurt out is a common form.

OP's specific context ("You say XXX") doesn't match any standard English expression. There are various slangy versions of "You talk / You're talking XXX" (where XXX may be rubbish, rot, crap, [bull]shit, bollocks, etc.). But they all focus on the idea that what you're saying is worthless, rather than that you're speaking without thinking.

Possibly "You're talking out of your ass" might come close to "without thinking", since to some extent it's modelled on "You're talking off the top of your head".


Consider the expression "say something offhandedly (or in an offhanded/offhand manner)."

The idioms "off the top of one's head" and "off the cuff" might also do the job for what is meant in the OP.

The speech was entirely off the cuff, and obviously straight from the heart.

Perhaps the things that are said off the top of one's head are truths intuited before blunt proof of the obvious is apparent.

I once said offhandedly to a coworker that had just been run over by a truck, "Wow! You look like shit!" It was meant to be disarming but it came off rather crass.

  • ‘Without a second thought’ is not a good fit for this, I feel. It refers to not having to think about something but acting/answering instinctively and without hesitation. Talking through your hat is quite similar to talking out of your ass and means that you're talking about something without knowing the facts; it may or may not be appropriate for the meaning the asker is looking for here. – Janus Bahs Jacquet Apr 25 '14 at 17:15

An alternative idiom:

lead with one's chin

Behave or speak incautiously:

she led with the chin and got her own way most of the time

He led with his chin, demanding that long-term board members stand down because they were ‘too old.

Until it can be clearly refuted, no one wants to take the chance of leading with their chin.

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