1. An individual, found in a group of others, who does not have anything to offer or does not bring anything to the "team".
2. A person who only thinks about themselves.
- "Man, you've never pitched for gas once. You're a such a McGuinty!"
- "Dude, you grabbed yourself a beer and I said that I needed one too. You're such a McGuinty!"
- Dalton McGuinty (Premier of Ontario, Canada)