- Uh-oh, he's stuck in an infinite LOOP.
- I can fix it.
The Big Bang Theory Season 2, Episode 13
What about LOOP quantum gravity?
The Big Bang Theory Season 7, Episode 20
...who believes LOOP quantum gravity
better unites quantum mechanics...
The Big Bang Theory Season 2, Episode 2
It's straight, it's in a LOOP,
The Big Bang Theory Season 11, Episode 13
...she's unjustifiably arrogant
about LOOP quantum gravity...
The Big Bang Theory Season 2, Episode 2