1. a cluster of makeshift dwellings occupied by exceptionally poor people or vagrants
2. any dilapidated place
What's with the shantytown?
A general term used to express the rubbishness or shantiness of something.
Girl: I can't play badminton tomorrow, I've too much work.
Boy: Shantytown! I've forgotten my train pass!
Girl: Aw shantytown, the train's late AGAIN.