What exactly does this mean?

[Bowser132]

...when a girl asks," Do you want to go out?" Does this mean they want to be my GF or they want to go on a date? If she wants to go on a date, what do I say? I've never really had a GF before and I think someone likes me :\

[Rutherford The Brave]

It usually suggest both options. It leans more to the "want to got out on a date" option though. Which usually means she wants you to be her Boyfriend. You just say "Sure, I would love to go on a date with you....." Plus there really is no feeling like having someone you can love, with all you heart.

[Θάνατος]

I agree it usually mean that she wants to go out on a date and she wants to be you girl friend. If you are not clear what she means then you can always ask her. Good luck and have fun. Let us know how this goes. I hope this advice helps you.