If you want to go hunting, play any game involving shooting or you wanna pass a bill in parliament but some shameless trogolodyte comes along and denies you the privilege... my friend you just got Glock Blocked.
I came home from a long day at work and wanted to relax with some Halo. However wife came along and wanted me to take her out for dinner instead, well I just got glock blocked.
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.