a witty way of saying loojer.
It's cooler this way. Say you're walking the dog in the park with someone and you want to point out a guy who's being shady...just call him a loojer! Or perhaps you'd like to pwn your friend with a dis? Call them a Loojer!
Jenna: Hey, where is Mike these days?
Ella: Mike? oh please, he's such a loojer.
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.