You Better Get It Before It Gets You

Just a silly guess - "It's alive!" (But if you drink it, you will neutralize it's ability to "get you." But we know that's not true!)

can we tell "it is some kind of good, and if you dont drink it now you lose it (it's taste and heat for example)"?

I just guessed!

I don't think so. But many people have a love-hate relationship with their coffee. They say bad things about it but they couldn't give it up. - Sort of masochistic.

I can't interpret the sentence as, "Hurry up while it's still good!" But, on the other hand, it might be something someone would say to encourage a friend to get some before it's gone, saying essentially two things: hurr