A shirt that by its design is intended to be hung on a hanger rather than folded or rolled and put in a drawer. Examples would be polos, button-ups and work shirts as opposed to t-shirts.
It is usually a girl's clothing that "hangs" on her boobs which in turn creates space between her abdomen and the shirt. Sometimes, it is also cut in a way that it shows bellybutton.
"She has a nice rack so she looks hot in a hanging shirt."
