Almost like the original "oh my god" but not used to express disappointment and shock. It's rather used in a quite lame attempt to try and charm a lady that has made an stunning entrance.
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.