When Atari put their version on the 2600, that was the first time they were ever called ghosts; but in the arcade, monsters.
So did the Ninja Turtles. So I put down "Surfer lingo, stoner lingo etc" Bill and Ted spoke like that too.
That sentence does not clarify valley girl.
I wonder which was first and if in any way it has influenced each other or has completely nothing to do with each other.
Sorry for my bad English.