What is Motion Girl?
1.
Kind of girl who loves to come late to class or a movie(or any other meeting place where people take a seat together with a common purpose) and takes ages to find a seat walking around and annoying everyone in the process, while she is actually ensuring that all the guys get a good look at her.
Girl: "Is this seat free?"
Boy: "It is."
Girl: "Oh, wait. I think I've seen a better one right there. Excuse me... excuse... Is this available?".
Boy: "hey dude, have you seen that girl? that's a motion girl."
See