I'm in the middle of something.

Translation language

Meaning

Directly states that the person is currently busy.

John: 'Quick question about the project...'<br>

Alice: 'I'm in the middle of something. Can I get back to you in a bit?'

John: 'I'm in the middle of something. I'll let you know when I finish.'

Alice: 'Is the report done?'<br>

Translation language