Karavolismos (or Karavolism) is when a person looks away from the camera while taking a photo, while having a sceptic and troubled look, like they are contemplating the meaning of life. The term derived from a Guy called Karavolias, who by doing this expression in a photo created a new inside joke meme.

the whale tail is the shape formed when a g-string rides up high over a womans trousers