解释下最后一句话怎么理解So she's basically the Greek symbol for massive

解释下最后一句话怎么理解
So she's basically the Greek symbol for massive inconvenience,which makes sense when you're fumbling with your too-fat fingers over a smudgy touch screen that cracks if you so much as cast a shadow on it.最后一句 if you so much as cast a shadow on it