Why does Gatorade say it's a thirst quencher?

Everytime I drink Gatorade it makes me more thirsty. Why do the G2 big jugs of Gatorade have thirst quencher written on their labels? I think drinking any kind of Gatorade makes you more thirsty because of all the sodium in it, not quench your thirst. And, isn't this false advertisement? I used to always think Gatorade was healthy for you, but if it has all that sodium, and just makes you more thirsty, which it does me, isn't that bad for you and how is it unhealthy?