Forgive me if the question is dumb, but -- what's a pip in this context?
A pip is one of the dots on your dice. So for example, if you roll a 6 you see 6 pips. :)
Its the games currency. Your starting pip helps determine your background.
Yes, but - what is it that the mice have in their pockets? What is one pip exactly?
It’s up to you to decide! I imagine them as little stones, engraved with the seal of an ancient mouse queen.