
It's called "PARALLEL play."
The Big Bang Theory Season 8, Episode 3

May I point out in a PARALLEL universe
your friends are saying:
The Big Bang Theory Season 4, Episode 6

The first 43 PARALLEL universes I've checked
proved to be empty.
The Big Bang Theory Season 6, Episode 8

...who doesn't believe
PARALLEL universes exist.
The Big Bang Theory Season 4, Episode 5

That's an inexact PARALLEL.
The Big Bang Theory Season 3, Episode 2