The craze that won't die, probably because it involved mob violence and throwing accuracy.
The backpack challenge, which first appeared in November, seems to have more lasting power than the 'challenges' that came before it.
In imitation of one of the final rounds on Raven, participants must attempt to move in a straight line as either side of them, backpacks are thrown.
Mostly you just go down.
Seems to be just people throwing back packs at other people, with the word "challenge" added retrospectively.
Some people don't make it very far.