From Longman Dictionary of Contemporary Englishwhat is somebody/something doing?what is somebody/something doing?spoken used to ask why someone or something is in a particular place or doing a particular thing, especially when you are surprised or annoyed by this What’s my coat doing on the floor? What are you doing walking around at this time of night? What on earth do you think you’re doing? → do
Examples from the Corpus
think ... doing• What do you think they're doing?• I think doing both has helped me.• I thought we were doing fine.• Whatever he thought he was doing here, it doesn't look like an assignation, not with a woman anyway.• I think doing this two times a week is great.• To add to that, he hated her for what he thought she was doing to his sister.• Listen, I thought I was doing well just to remember who he was.• The Reagan Era, I think, is doing wonders for Tod's morale. 