Only given to people who have iPhones. Basically iPhones are so cool that people who have them are also really cool, and people dont mess with people who are cool and have iPhones, so people who have iPhones have iPhone Immunity. It protects you from almost everything except for natural death. Ghetto fools wont mess with you because they wish they were you. Friday the 13th wont mess with you because you are too cool to get unlucky on Friday the 13th. So if you want to have iPhone Immunity, get an iPhone. It works for iPhone, iPhone 3G, iPhone 3GS, iPhone 4, and iPhone 4S.
Urban Dictionary wants an example for the dfinition of iPhone Immunity!