- (Looks) It means that she's way too hot for you OR your way too ugly for her
- (Character Traits) The two of you don't have interests/hobbies in common
Most Helpful Girl
Usually, I hear it used in reference to someone being more attractive than the other person.
I personally don't believe in "leagues".
I believe there's more than meets the eye.
Someone can appear hotter than their partner, but how can we automatically assume that person is out of their s/o's need solely based on the surface?
We don't even know what character traits that person possesses.
For all we know the person could be a liar, cheater, manipulator etc.
The term "out of your league"
can also be used in reference to personality traits.
But it is rarely ever used that way.
It usually can describe someone who is intelligent, good career, etc dating someone who is not so smart, terrible job etc.
Most Helpful Guy
The only way for someone to be out of your league is if they put you there, or you put yourself there. Nobody is out of your league by default. However, individuals can have their own preferences and standards that put you out of their league. But that's on an individual basis, so you can never assume anything just because they are good looking, rich, educated, different social class, popular, or whatever.