Well it didn't actually happen (as far as he knows...) so it might not need a name after all.

"Like science fiction drama," Topher answers, giving up on trying to sugar-coat it. "About, say, how your mom used to travel in time..." He really, really tries to avoid mentioning this stuff to people, really, he does! But then Luke kept asking. But at least he's not going to tell him anything about what happens to him or Sarah Jane later.