Other forms: dorks
A dork is a socially inept person. If you started dancing the polka at a hip-hop club, you might well expect to hear "man, what a dork."
Dork is one of many unkind names for the awkward or unpopular kids in school. Some others include dweeb, geek, goober, nerd, and weenie (try repeating that list really fast ten times). Most of these are not names you’d want to be called, although geek can denote a certain sense of pride in one’s uncoolness, or a proficiency in something useful.