Stupid people who talk too long and too hard about subjects that they clearly have no knowledge of, usually whilst trying to be ironic and humourous into the bargain.
Anyone who appears on shows such BBCs 'I love 19xx' or Channel4s '100greatest ...' .
The grimace your face makes when you have something stuck in your teeth and you try to get it out with your tongue
1:"You look a bit opidiscipt in the photo, did you get something good for lunch"
2:"Don't you just hate having braces? I always end up looking opidisciptum"
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.