An Australian term of endearment, similar to "Mate" but usually used in a slightly more patronising tone and with less immediate masculine connotations.
A good example is a parent describing a son or daughter, or an older person describing a young person.
The term is usually used playfully.
"G'day, John, you couldn't keep an eye on Bugalugs over here while I get something out of my car could 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.