A phrase used by Mac fanboys who want to believe all PC users are jealous of their having spent an automobile's worth of income on a computer made for people who are too simple to maintain a PC without it crashing every five minutes. In line with their usual vain sentiments, it's their way of further ascribing false superiority they think they attained upon draining their bank account to purchase an overpriced Macbook, iPad, iPhone and every other Apple device to solidify their sheepish loyalty. A typical logical fallacy, they need to assume others are jealous to justify their purchases and feel better.
All losers with a Windows or Linux PC just have Mac Envy over my awesome Macbook Air and accompanying iPad and iPhone 4. I love spending money to try to show how awesome I am. Now why can't I replace this faulty battery?