Generally, I don't use "God," but not because I have a bias against it or for it. I just enjoy clarity in conversation and will try to speak in terms that people widely accept - it's just more efficient. It is mostly because most people have a certain idea of what "God" means in my culture, and that usually means something close to the Judeo-Christian Father-god archetype. I would say, 9 times out of 10 (not a scientific poll), most people would assume that...
I'm not out to rewrite common working definitions for things. I don't correct people if they say "Kleenex" instead of "facial tissue." Regional vernacular is just that and I don't fancy myself a vocab crusader or a spiritual pundit.
That being said, I agree in a certain way that "God" could be considered a nice term for convenience that tries (in vain) to encapsulate the Absolute, albeit misleading for most people for the reasons mentioned above.
So, to answer the question, what do* I* mean by "God," I have to go with this - it is another perspective, which we create, that has meaning for us. The famous(?) Blind Webster poem is how I tend to look at what GOD TRULY IS - we make God by worship and by our creation, which is action:
It is not necessary to understand; it is enough to adore.
The god may be of clay: adore him; he becomes GOD.
We ignore what created us; we adore what we create. Let us create nothing but GOD!
That which causes us to create is our true father and mother; we create in our own image, which is theirs.
Let us create therefore without fear; for we can create nothing that is not GOD.
At the end of the day, probably just easier to try to explain in detail what we mean, in the best way that we can.