dimwad

1. someone of no intelligence whatsoever
2. someone without skillage
3. someone who has no major role in society

1. You don't know what the equilibriam of a two sided square witha length of x times the square root of pi to the eighth degree of radical 7 is? DIMWAD!

2. You are a dimwad.

3. That hobo on the street is such a dimwad.