My definition of Su-Barbie-A is suburban housewife/Barbie complex. Will do anything for the man of her dreams even if he doesn't treat her right, appreciate her, or even love her but she can do anything because she's that woman.
She looks like a teenager in the video, and her relationship with her ''boyfriend'' seems more teenager-ish
She doesn't seem a primadonna in the video neither.
But I guess each bonus track belong to an archetype