Pulling an Andrew is when someone does one of those liquid farts which stain your underwear and make it a necessity to change boxers. Pulling Andrews can leave serious stains and even burn through your underwear.
Ahh Steve I am just pulling an Andrew and my boxers are stained brown.
When someone is successfully 'Being an Iris' they have some how managed to become the most beautiful perfect being in the world. This is called Being an Iris because Iris is the most perf person in the world and only she can be an Iris.
Iris is being an iris because she's the most beautiful and perfect person you will ever meet