What is annoying or bothering you?
what's in it for me
What are the advantages of (something) to me, personally?
what's up
What’s the matter? What is the problem? What is wrong?
what's the matter
What is wrong? What's the problem?
what's cooking
A greeting, similar to how are you?; what's happening?; what's up?; wh…
what's the good of
What is the purpose or advantage of
what's eating
What is wrong with...? What is the problem with... (somebody)? Inquire…