Exactly what it sounds like (a psychological condition with which one can never be fully nude, even outside of the presence of others. Frequently solved by the perpetual wearing of short denim cut-offs). Made popular by Tobias Funke from the Fox sitcom Arrested Development.
Your list title nailed it; we really do have Frank Zappa to blame for the awful baby-name craze. Remember when people made fun of the names Moon Unit and Dweezil? In the movie "Baby Mama," you overhear a mother in the park calling to her kid named Wing Span.