A feature added into games upon the release of the Xbox 360. It was intended to be a bit of fun, but because Xbox Live is just the huge
cuntfest that it is, it is now a number used to criticise other people.
If for example, someone has a low
gamerscore they suck and should immediately give up on living. However, if someone has a high gamerscore then they have no life. These are not the only two parts of the spectrum though, because your gamerscore is the perfect balance of skill while still
having a life.