Can I say "your mum"? I mean I know I can say it but am I the first to say it? Or is it even worth saying? I'm not pretending to be high-brow when it comes to my entertainment, but do you all appreciate me lowering the tone of the conversation by throwing that cheap line into the mix?
Let me know if it's something I should keep for when a friend asks me the same question upon answering the phone, otherwise my answer is engaging the intellectual equivalent of jacking off.