People are sharing six-second clips of smacking unsuspecting victims and tagging it with the hashtag #SmackCam or #Smack.
We first heard of the disturbing new fad on Jezebel.
In one Vine video, two guys walk up behind an unsuspecting girl and smack her in the face with whipped cream. In the next scene, we see her crying, covered in whipped cream.
Even if these are just staged jokes, they're pretty terrible.
Here's the link to watch it, but it's pretty terrible.