Liquid Ass (stylized as Liquid ASS) is a stink bomb product invented by Alan Whitman and marketed by Whitman and Andrew Masters. It is sold in retail locations in the United States and at least 8 other countries, and on the Internet. According to the manufacturer, the product will not stain most fabrics and the odor dissipates in less than a day.
The U.S. Military uses Liquid Ass in training to prepare troops for the odor of the battlefield. It is also used in training for what can go wrong in abdominal surgery.