I always let other women know if a stall is out of toilet paper before they go in. It's basically just that your loyalty is always with other women - that's what 'girl code' is supposed to be." However, many people believe that in fact the 'girl code' goes far beyond relationships, and generally concerns the sphere of women's communication and interaction with each other and, importantly, their attitude toward themselves. If some guy is doing her wrong, I'm telling her, I don't care if I've known him my whole life, its girl code. Based on this theory, the 'girl code' is such precisely because women follow similar rules.