Shirt that is very trendy, large, has no shape, and is quite unflattering. Basically, you can have one made by giving two large pieces of fabric to a child and asking them to sew them together. It is generally worn by sluts or generic skanks. Usually the side or large portion of the bra can be seen by all who wear this type of shirt.
Wow, that trapezoidal shirt sure hides how large that girl's body is.