The spelling of "hath big mouth" may seem odd at first glance, but it can be explained with IPA phonetic transcription. The "hath" portion is pronounced as /hæθ/, with the "th" sound represented by the symbol θ. Meanwhile, "big mouth" is pronounced as /bɪɡ maʊθ/, with the "ow" sound in "mouth" represented by the symbol aʊ. This spelling may be related to older forms of English, where "hath" was used instead of "has" and alternate spellings were more common.
"Hath big mouth" is a colloquial expression that refers to an individual who frequently engages in boastful or excessive talk, often exaggerating their achievements, abilities, or knowledge. This idiomatic phrase signifies someone who tends to speak loudly, make bold claims, or boast about themselves, sometimes unrelentingly or in a brash manner.
The usage of "hath" in this phrase is archaic or dialectal, meaning "has," while "big mouth" metaphorically alludes to the size and volume of their words. It implies that the person in question lacks humility and tends to overstate their own importance or abilities.
Describing someone as having a "big mouth" suggests they may exhibit tendencies such as self-promotion, self-aggrandizement, or bragging, often without substantial evidence to back up their claims. This expression is commonly used in informal conversational contexts to criticize or mock individuals who are incessantly, boastfully vocal about various aspects of their lives, experiences, or skills. It can also depict someone who frequently interrupts or dominates conversations, drawing attention to themselves while disregarding others.
In summary, "hath big mouth" characterizes an individual who habitually engages in loud, exaggerated, or boastful speech, reflecting a tendency toward self-praise and a lack of modesty or restraint in their communication style.