Sometimes percieved as an insult, usually a stereotype or label.
A basketcase is common word used to describe a social outcast in school. Some characteristics of a basketcase included emotional instability, weirdness, and constant isolation from mainstream society. A basketcase is often independent and isolationist, in other words, anti-social.
This word was widely used in the 80s. Like most slang prior to the 90s, it has fallen into disuse. Today, a basketcase can be categorized in three groups known as the goth
, and punk