"To begin Aspiration Therapy, a specially designed tube, known as the A-Tube™, is placed in the stomach."

"The A-Tube is a thin silicone rubber tube that connects the inside of the stomach directly to a discreet, poker-chip sized Skin-Port on the outside of the abdomen. The Skin-Port has a valve that can be opened or closed to control the flow of stomach contents. The patient empties a portion of stomach contents into the toilet after each meal through this tube by connecting a small, handheld device to the Skin-Port. The emptying process is called 'aspiration.'"

If bulimia is somehow wrong, how can this be a legitimate medical treatment?

Via Metafilter, where somebody penned the slogan: "When one anus isn't enough."