To cause unintentional miscalculation, (and thus) harm towards your own associates, due to a fault in ones (individuals) action performing an endeavor.
I played a game of AP Warwick and I almost died.
-Did you kill anyone?
No, but a Vel'Koz was low on health.
I had bedswangled him.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.