Pronunciation: [hˈe͡ɪst ɐ bˈɪɡ mˈa͡ʊθ] (IPA) 
The phrase "hast a big mouth" is an old-fashioned way of saying someone talks too much or is too loud. The spelling of "hast" is an archaic form of "have" and is pronounced /hæst/, with the "a" sound as in "cat". The word "big" is pronounced /bɪɡ/, with the "i" sound as in "sit". Finally, "mouth" is pronounced /maʊθ/, with the "ou" as in "out". So, the whole phrase is pronounced /hæst ə bɪɡ maʊθ/.
"Hast a big mouth" is a colloquial phrase primarily used in informal or casual settings to describe someone who talks excessively or without restraint. The phrase typically carries a negative connotation, implying that the individual tends to share confidential or personal information, gossip, or boast about their own achievements in an inappropriate or unfiltered manner.
When someone is said to "hast a big mouth," it suggests that they have a tendency to speak indiscreetly, regardless of the consequences. This behavior often leads to the divulgence of secrets, spreading rumors, or embarrassing oneself or others. Such individuals may lack the ability to maintain confidentiality or may simply enjoy being the center of attention by dominating conversations. Their unrestrained speech can cause discomfort or unease among those around them, as it may create an environment of mistrust or undermine personal relationships.
Additionally, the phrase can also suggest that the person speaks loudly or forcefully, drawing attention to themselves and potentially interrupting or overshadowing others. This may indicate a lack of social awareness or consideration for others' thoughts and opinions.
Overall, "hast a big mouth" is a figurative expression used to describe individuals who have a tendency to speak excessively, indiscreetly, or inappropriately, often causing harm to personal relationships or damaging their own reputation.
