For most people it will be a goal weight. Most will reach what is medically excepted as a "healthy weight" before that. I suppose it is an individual thing though. I would guess to most it means goal. It does in my case.
It means they weigh in at 10 lbs, and soon, they'll be non existent. J/K! I'm pretty sure it depends on the personal goals they've set for themselves whether its to be a certain weight or BMI.