Uber

Gamers use uber as a synonym for "excellent" or "very good." This slang term is a variant of the German word über, which means "over" or "above."

For example, an uber gamer is a very skilled gamer, and a gamer said to have "uber skills" is likely quite good. However, uber is a quite commonplace and flexible term, so you're likely to see gamers use it in a variety of other contexts and combinations.