Pronunciation: [blˈat ˈa͡ʊt] (IPA) 
"Blat out" is a common phrase meaning "to say something loudly and without hesitation." Its spelling is straightforward, with the "b" and "l" consonants pronounced as in "blue." The "a" sound is pronounced with a short vowel, as in "bat." The "t" at the end is pronounced as an abrupt stop, with a puff of air, as in "cat." In IPA phonetic transcription, this phrase would be rendered as /blæt aʊt/.
The phrase "blat out" is an idiomatic expression that can be found in informal speech or writing. It is not a well-known or widely-used term, but its meaning can be understood through the combination of the separate words "blat" and "out".
"Blat" is a verb that typically means to make a loud, disagreeable, and usually continuous noise, often associated with an unpleasant sound or sudden outburst. It can also convey the idea of expressing or uttering something loudly, boldly, or without any attempt at subtlety. On the other hand, "out" is a preposition indicating movement away from a particular place or position, or a state of complete exhaustion or depletion.
When these words are combined, "blat out" suggests an action of proclaiming, announcing, or stating something in a loud, forceful, or emphatic manner. It implies that the speaker is being unabashedly direct or forthright, disregarding any considerations of politeness, tact, or appropriateness. This phrase often conveys an element of disregard for potential consequences, as if the speaker is simply blurting out their thoughts or opinions without any self-censorship.
In summary, "blat out" refers to the act of declaring, voicing, or expressing something abruptly, loudly, or without restraint. It suggests a lack of refinement, tact, or consideration for the impact that one's words may have on others.
The phrase blat out does not have a clear etymology as it is not a widely recognized or established expression. It is possible that this phrase is a variant or a regional variation of the more commonly used phrase black out. However, without any specific context or usage, it is difficult to provide a definitive etymology for blat out.
