He fucked a car.
As to whether this car-fucking was the result of a prank, lost bet or true mechanophilic lust we may never know. The only thing in the video’s description is a link to this weird blog in Portuguese which is pretty much a collage of “people behaving badly.”
But the fucker looks pretty surprised to be caught by a camera.
At least there’s one mystery I know our readership can solve: what kind of car is getting fucked here?