The phrase "doth a number on" is commonly misspelled as "does a number on". However, the correct spelling is "doth", which is an archaic form of "does". The "th" sound in "doth" is represented by the IPA symbol /ð/, which is different from the "s" sound in "does" (/z/). So remember, when you want to express that something has a negative effect on something else, use "doth a number on" and not the commonly misspelled "does a number on".
The phrase "doth a number on" is an idiomatic expression in the English language. It is mainly used in informal contexts to describe the impact or effect that an event, situation, or action has on someone or something. It often implies a negative or detrimental effect.
To "doth a number on" is to cause harm, disruption, or negative consequences to someone or something. It suggests that the situation or event has had a significant and often unexpected impact, leaving a lasting effect or damage. The phrase is commonly used to describe situations where individuals or objects have been greatly affected, mentally, emotionally, physically, or socially.
For example, one might say, "The accident really did a number on her. She has been traumatized and can't seem to move on." In this case, the accident had a substantial and long-lasting negative impact on the person's well-being and emotional state.
The phrase is derived from colloquial language and is often used casually or informally in conversation. It conveys a sense of vividness and emphasizes the extent of the effect or damage incurred. Overall, the expression "doth a number on" encapsulates the notion of negative consequences or harm resulting from a specific event, action, or circumstance.