This is what happens right before cannibalism.
The video was posted to Reddit a day ago by one of the guys who started the song.
"People were getting sick and furious," he wrote. "My friends and I tried to lighten the mood." In the comments' thread, the poster also said he and his friends were flying back to Phoenix from a Las Vegas bachelor party. They were stuck on the runway for an estimated five hours — told they "would forfeit our money and seat if we got off the plane."