
What about loop quantum GRAVITY?
The Big Bang Theory Season 7, Episode 20

Unless you have Gravity
on Blu-ray under that skirt,
The Big Bang Theory Season 7, Episode 21

Well, I have an extremely
low center of GRAVITY.
The Big Bang Theory Season 7, Episode 11

...as A and we get force...
Earth GRAVITY.
The Big Bang Theory Season 3, Episode 10

Well, as long as it has a healthy GRAVITY
and all its moons, I'll be happy.
The Big Bang Theory Season 9, Episode 12