This is the 14049th most frequent Turkish word.
midibüste
"Midibüste" means "on/in the midibus."
Here, 'midibüste' is used to indicate the location where the speaker saw the scenery, specifically 'on the midi-bus' (a type of public transportation).
Midibüste çok güzel bir manzara gördüm.
I saw a very beautiful scenery in the midi-bus.
In this sentence, 'midibüste' indicates the place where the friend was engaged in an activity, namely reading a book while sitting.
Arkadaşım midibüste oturup kitap okuyordu.
My friend was sitting and reading a book on the midi-bus.
Here, 'midibüste' is used to describe the situation or circumstance, referring to standing on the midi-bus for an extended period.