Rattling around in my head are a couple more ancient goodies. Perhaps, if you were born after 1980, you haven't heard them. Sorry about that. Consider this part of your classic education.
As it were. Is this even grammatically correct? It's been used academically for years as far as I know, and I don't know how 'they' got away with it.
So to speak. Wow. Almost Shakespearean English.
If you will. I feel like I'm stuck in the middle of 'The Importance of Being Earnest' and the butler is holding out his hand to let me into the room. Is that a bad thing?