My Sims for the Wii; What does "Pre-played" mean?



Oh no! I’m planning on buying my friend My Sims for the Wii for her birthday. BUT, it was almost on Amazon. I found it on Gamerang for almost , but it says "Pre-played."
Does that mean that it’s being sold before it’s being played OR that it’s been played before??

Having played next to no video games in my life, I really want to be sure that I’m ordering my friend the correct game.
The price for this particular product (on Gamerang) is fantastic, but it being played before doesn’t sound all that inviting.

Thank you so much!