In Shakespeare's "Julius Caesar," the phrase suggests that a person's rudeness enhances their cleverness, making their words more palatable to others. The implication is that the sharpness or brusqueness of one's demeanor can provoke thought and engage an audience more effectively. This interplay between rudeness and wit creates a dynamic where listeners are drawn to the speaker, eager to absorb the substance behind the sharp delivery.

The idea reflects how strong personalities can command attention; their abrasive manner might initially seem off-putting, but it ultimately makes their insights more appealing. The blend of humor and harshness not only entertains but also prompts deeper reflection among listeners, creating a more engaging dialogue than mere politeness could achieve.