When it come to jerks, assholes, and morons, I've always thought more along the lines of percentages; whether by race, gender, nationality, or pretty much anything that doesn't categorize by opinion (there are just some things that attract certain types of people).

Watching Ramsey's Kitchen Nightmares has exposed me to frequent (to say the least) usage of the phrase. I've got a general idea of what it means, but could you provide a more specific definition?