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It's happened: teens have mature woman massage sex videosfinally lost their damn minds.

The mannequin challenge and Andy's coming are dead, and a new, much more violent challenge is making its way through American high schools: the #BackpackChallenge.

Here's how the #BackpackChallenge works: one very brave person runs between two rows of lined-up participants, who throw their backpacks full-force at the runner.

As you might guess, this doesn't turn out well for the runner, who typically topples over after two or three blows. Backpacks are heavy.

Here is the original video from Twitter user Abucci Wood who claims he is the challenge's creator:

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And here are some of our favorites:

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Teens, we love you . Get it together.