The song describes a man with ambiguous sexuality who falls in love with a woman with whom he imagines he could settle down and be married. However, he soon discovers that the object of his affection is a lesbian who possibly thinks that the man himself is gay. The song is based on a real person that Weezer frontman Rivers Cuomo encountered while a student at Harvard. Years later, he discovered that the woman was actually not a lesbian but merely showing support for the gay community by wearing a pink triangle.
Augh! Rivers will be there?…better wear the pink triangle.