Pronunciation: [hˈʌmz and hˈɔːz] (IPA) 
The phrase "hums and haws" means to hesitate or speak unclearly. The spelling of "hums" is /hʌmz/ and "haws" is /hɔz/. The "u" in "hums" is pronounced like the "u" in "hut" and the "a" in "haws" like the "a" in "caw." The "m" in "hums" is voiced, while the "s" is unvoiced. In "haws," the "w" is silent and the "s" is pronounced like a "z". Together, they form a phrase with a unique spelling and sound.
The term "hums and haws" is often used to describe the hesitant speech patterns of individuals who struggle to express their thoughts coherently or decisively. It refers to the continuous production of hesitant or filler sounds, like "um," "ah," "uh," or "er," often accompanied by pauses or phrases that do not contribute much to the conversation. This phenomenon is primarily observed during verbal communication, when individuals struggle to find the right words, thoughts, or ideas to convey.
"Hums and haws" is commonly associated with uncertainty, lack of confidence, or a tendency to overthink before speaking. People who frequently engage in this speech pattern may appear indecisive, unprepared, or unsure of their ideas or opinions. The excessive use of filler words and uncertain language can also make their speech less persuasive or compelling.
This term is derived from the onomatopoeic nature of the sounds produced during hesitations like "hmm," "ahh," or "eh" along with the phrases such as "you know," "like," or "well." The phrase "hums and haws" can be used to describe this speech pattern, regardless of its underlying reasons, whether due to nervousness, lack of confidence, or difficulty organizing thoughts.
Overall, "hums and haws" is a colloquial expression used to describe hesitant, unsure speech patterns characterized by the use of filler words, pauses, and phrases that do not significantly contribute to the conversation.
A suppressed utterance with stammering, indicating that the person is at a loss what to say.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
