bite the biscuit

1. To die, break down, or become defunct. We all have to bite the biscuit someday. I drove that truck everywhere for 25 years, but it finally bit the biscuit yesterday. Sadly, it doesn't take long for the latest technological innovations to bite the biscuit.

2. To face up to, undertake, or confront some unpleasant or risky situation, action, or responsibility. You were the only person here when the television broke, so you might as well bite the biscuit and tell me the truth. I guess we'd better bite the biscuit and get this over with. I don't actually enjoy cleaning, but I bite the biscuit and do it so that everything in my house isn't covered in a thick layer of dust.