Liquid Ass

{{short description|Foul-smelling spray product for practical jokes}}

{{Orphan|date=October 2019}}

{{Notability|product|date=April 2025}}

Liquid Ass (stylized as Liquid ASS) is a stink bomb product. It was invented by former engineer Alan Wittman when he was in high school. In 2005, he founded Liquid Ass Novelties, LLC, in North Carolina, alongside fellow engineer Andrew Masters.

Liquid Ass is sold in retail locations in the United States and at least 8 other countries,{{cite web |title=Retail Locations |publisher=Liquid Ass |url=https://www.liquidass.com/retail-locations/}} as well as online. According to the manufacturer, the product will not stain most fabrics and the odor dissipates in less than a day.{{cite web|url=https://liquidass.com/pages/faq|title=FAQ|last=|first=|date=|website=|publisher=Liquid Ass|archive-url=|archive-date=|access-date=}}

The U.S. Military uses Liquid Ass in training to prepare troops for the odor of the battlefield.{{cite web |author=Kate Horowitz |title=The Fart Spray That Trains Our Troops |date=January 26, 2016 |publisher=Mental Floss |url=http://mentalfloss.com/article/74358/fart-spray-trains-our-troops}} It is also used in medical training, as the product's smell is similar to that of the human colon.{{cite AV media |author1=Amy Standen |author2=Judy Campbell |date=October 6, 2015 |title=Episode 1: The Strange Journey of the World's Worst Smell |work=The Leap |publisher=KQED News |url=http://ww2.kqed.org/news/2015/10/06/the-strange-journey-of-the-worlds-worst-smell/}}{{Cite web|last=Foley|first=Katherine Ellen|title=An unusual medical training tool got its start as a childish prank|url=https://qz.com/1321817/an-unusual-medical-training-tool-got-its-start-as-a-childish-prank/|access-date=2021-12-13|website=Quartz|date=9 July 2018 |language=en}}