The phrase often conveys strong disapproval or disgust toward a person or their actions. After the scandal, the politician was the lowest of the low in the eyes of the public.
Pro Tip 2/3
Moral Judgment
Using this phrase implies a moral judgment, suggesting someone's behavior is ethically wrong. Stealing from charity is being the lowest of the low.
Pro Tip 3/3
Severity
It's used to describe extreme cases, not just everyday mistakes or bad behavior. The CEO embezzled millions, making him the lowest of the low.