The phrase "dost the washing" may be unfamiliar to some, but it is a valid question in British English meaning "do you do the laundry?" The spelling of "dost" reflects the use of archaic second person singular verb form of "do" that was commonly used in Middle English. It is pronounced /dʌst/ and can be best translated to "doest" or "does". The use of IPA phonetic transcription can be helpful in understanding the pronunciation and meaning of obscure phrases that may not be familiar to all.
"Dost the washing" is a phrase that appears to be a combination of archaic and colloquial language. "Dost" is an archaic second-person singular form of the verb "do" typically associated with Middle English and older English translations of the Bible. "The washing" is a more contemporary term that refers to the act of cleaning clothes or other items using water and detergent.
With that in mind, the phrase "dost the washing" could potentially be interpreted as an older form of the question, "Do you do the washing?" The phrase might be used to inquire whether or not someone performs the task of laundering clothes or other items.
The cultural context in which this phrase is used might be important to consider. If used in a historical or literary setting, it could be an attempt to recreate the language and speech patterns of a specific time period. Alternatively, in colloquial or informal speech, it might be used jokingly or whimsically to evoke a sense of nostalgia or playfulness.
However, given the limited information provided, it is important to clarify the intended meaning within the specific context in which the phrase is encountered, as it may have different interpretations depending on the situation or conversation at hand.