What's (one's) beef (with someone or something)? informal question slang
Used to ask what one's problem (with someone or something) is
A: "What's your beef with him?" B: "I just don't like his attitude."
Now, tell me what your beef with it is.
What's your beef this morning?
This idiom is often used to express that you should accept an unpleasant situation or event because you cannot change it.
When you experience extreme and undesirable situations, it is probably essential to take extreme actions
To keep optimistic or have hope that something positive will occur and simultaneously prepare for a negative outcome
All I can do is hoping for the best and preparing for the worst.