1.) A person with a one track mind, lack of focus and intelligence.

2.) A person who was home-schooled by their parents.

3.) A mexi-cant.
Why did you drop your bowling ball you tunnel-vision-retard.

Sean: How come all he's talked about all day is World of Warcraft?
Paul: Because he's a tunnel-vision-retard.
Get the tunnel-vision-retard mug.