1. noun: A girl who is graded as a 5 on the attractivescale of 1-10 that puts out more than the average girl in order to receive attention despite her low grade.
A Slooty Nickel is a term reffering to a girl who is both slutty, and a 5 on a scale of 1-10. The Slooty Nickel is a girl who is the "might as well girl" at the end of the night.