The act of doing something completely ass backwards. Generally anything that involves an illogical choice or decision that would be viewed by anyone as retarded.
A Moseychuck- Why are you taking the highway, it's only twoblocks away, retard!
When a teacher assigns a homework assignment or a project at the last second of class.
Person 1: Dude wanna come over and play CoD over the weekend?
Person 2: Naa man I can't my english teacher keeps pulling a moxley.
Person 1: Ha! Sucks for you.
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.