misnomer \mis-NO-muhr, noun:
1. The misnaming of a person in a legal instrument, as in a complaint or indictment.
2. Any misnaming of a person or thing; also, a wrong or inapplicable name or designation.
Calling a “hippie” a “wookie” is a misnomer: though your hippie and wookie friend probably look alike with their long hair and ratty t-shirt, hippies actually care about a cause*, while wookies just want to listen to jam bands and have a good time. Oh, and wookies have better dance moves, too.
*Usually the enviornment or animal rights
