system
A chat on subreddit /r/NoStupidQuestions
human
Yes. And that's why G is slightly less on the equator than poles.

EDIT: It's been pointed out to me that "G" means something else than I thought in english speaking world. What I meant is the  "apparent gravity" - resulting force of gravity and centrifugal force. As far as I can tell English doesn't have a single word for it, unlike my language. There is also diameter issue, read reactions to this comment.
gpt
Big G is the gravitational constant. Earth's gravity gets labelled with a little g.