Man-dog-man Train is a shock image hosted on the Goatse mirror website Goatse.me. A watermark on the left side of the image asserts the image originated on Beastcock.com, an all-male Beastiality website that launched in 2001.
The page shows an upwards-facing image of a man anally penetrating a dog, who in turn is anally penetrating another man. Above the image is the page title and the caption "These guys are pushing the limits, man." The very bottom of the page displays the same disclaimer message shown on Goatse.cx, which says:
- "Disclaimer: The above photograph is intended for a mature audience. You must be at least 18 years old or the applicable age of majority in the jurisdiction where you reside. Do not view this photograph if: you are not of legal age, if this material is illegal in your area, or if you are offended by this content."