The phrase "does a number on" is an idiomatic expression with a figurative meaning. It is typically used to describe a situation, action or event that significantly affects or has a detrimental impact on someone or something.
When someone says that something "does a number on" someone or something, they mean that it has a strong and often negative effect or influence. The phrase suggests that the impact is significant, potentially causing harm, damage, or distress.
For example, if someone says, "That breakup really did a number on him," they are implying that the breakup had a profound and lasting emotional impact on the person. It affected them deeply and may have caused them pain or distress.
Similarly, if someone says, "The storm really did a number on our house," they are indicating that the storm caused significant damage to the house. It implies that the house is in a state of disrepair or requires extensive repairs.
In summary, "does a number on" is a colloquial expression that conveys the idea of a substantial and often negative impact on someone or something. It implies that the effect is noteworthy, potentially causing harm, damage, or emotional distress.
