What does "at will" employee mean?

The majority of workers in the world are employed on an "at will" basis. This means that neither the employee or the employer is under any obligation to one another. For example, if you are a teacher, both you and the school sign a contract, and neither party can break it unless there are agreed-upon reasons. But with "at will" employment, you can up and quit a job without penalty. In today's age, an employer can terminate employment, but only for the right reasons. They cannot fire you for being pregnant, for racial discrimination and a dozen other reasons.

An "At-will" employee is an employee that can quit or be fired at any time with no repercussions. Basically if an employee is doing good work consistently that the employer should have no reason to fire them. The threat of the possibility of loosing their job will force them to continue providing exceptional work. Most states now however have lestened the power of at-will employment. Mainly so people can't be fired because of the color of their skin or sexuality.