What is water?

It sprays me, I sip it, I splash
There’s plenty of this stuff
No one will take it away from me or
Say, “no more, there isn’t enough”
So, I sip some more
Think nothing of it
While she cups it
Licks it
And then she wakes
To the swollen stomach and she shakes
And they cry, “there is no more, there isn’t enough”