The word "quims" is a slang term that means the female genitalia. It is commonly spelled with a "u," instead of "cu," which is due to a phonetic reason. The word "quim" is pronounced as /kwɪm/ in IPA phonetic transcription. The "u" in "quim" represents the "w" sound, while the "i" represents the "ih" sound. Therefore, the spelling of "quims" with a "u" is consistent with the phonetic pronunciation of the word. However, it should be noted that this term is considered to be vulgar and offensive.
The word "quims" is a slang term that is generally considered offensive and derogatory. It refers to female genitalia. As such, it does not have an established etymology in the same way that more commonly used words do. Slang terms often emerge and evolve within specific social groups or regions, and their origins can be difficult to trace. It's worth noting that the word "quim" has been used in English since at least the 17th century with a similar meaning. Its etymology is uncertain, but it may have emerged from Germanic origins or been influenced by Scandinavian languages. However, "quims" is not a widely recognized term and may have originated as slang in more recent times.