She might want to rip up her master's lol. But wait, at first you said you had books proving it now you're saying you were told it? Also, no one has commented on your actual grammar, just the misuse of tongue and cheek. Seriously. Google chique and see what it means. Then combine it with tongue and chique and tell me it how it makes sense. Tongue and cheek has been a saying for over 100 years.