O’Neill is always a name given to the best people. They are talented, smart, athletic and good at anything. They are in general great

A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.

Sweet,loving,funny,and a very good boyfriend.He is usullay very tall and a cute boy. He is flirty with a lot of girls but he’s usually more flirty to his girl. He very athletic. He is also very caring friend. If you find a O’Neill you are a lucky one.

A commonly used named for a janitor or custodian.