Translation:I am on the toilet, can you answer the door?
And I thought the same, for me it looks like he climbed up on the top of the toilet right above the ceiling and he is doing something from there, maybe drilling some hole to install some pipes. But of course as English is not my native I suppose it is normal to say I am on the toilet...
so bakmak = to answer. I thought it was to look at, but I was wrong.
You are right, bakmak = to look İ think the app is mistaken somehow since the whole sentence doesnt make sense at all