询问'Joe Lunchbox'的意思，请看内贴

在yahoo的新闻里看到 There's certainly a customer segment that could be called 'Joe Lunchbox,' who expect to be nickeled and dimed," says Preuninger。 在这里，'Joe Lunchbox'是什么意思呀？who expect to be nickeled and dimed 是用来解释的，但是还是不明白。请指教，谢谢！