What someone who is lame calls themself thinking that it makes them cool.

When you eat dirt for the first time and leave your family to build a shack in the woods

A thug Badass is a a follower in society, NOT a leader, thugs are lead by leaders, a thug don't think for himself, he thinks what a leader tells him, he follows trends that almost always go against common sense, a stupid thug goes to prison because they always do a leaders dirty work, a stupid thug is usually a criminal and a member in a gang.