What is so to speak?

Here's some information about "so to speak":

"So to speak" is an idiom used to indicate that you're not using a word or phrase in its literal or strict sense. You're using it figuratively, metaphorically, or in a slightly unusual way. It essentially signals to the listener or reader that they shouldn't take the preceding words completely literally. It implies a slight reservation or qualification about the word choice.

It can also indicate that you are unsure whether the term is the most appropriate. For example, you might use "so to speak" when employing humor, sarcasm or irony.

In short, it's a way of saying, "Use this word loosely," or "Don't take me too seriously on this particular word." It helps to soften potentially bold or outlandish statements.