• A synonym for the [double popped collar]. This is when an individual wears two polo shirts, each with their collar folded up. These polo shirts are typically pastel coloured, although harsher colours are sometimes worn.
    Wearing the biplane is a sufficient condition for being a [douchebag].

  • To perform auto fellatio on oneself with your legs spread as far as possible, you reach out and grab your feet so that it looks like the wings of an old bi-plane.