Someone who would play any childish game on the Xbox 360 console just for the easy 'achievements' to boost their gamerscore. It is frowned upon by most because it seems no one plays for 'fun' anymore. They are most commonly found on the www.xbox.com forums.
GS Whore: HEY GUYZ WILL SUM1 HELP ME BOOST 4 MUH LOST PLANET LVL 50 PLXX!!!!!???//1
XboxForumUser: Why do you want to do that?
GS Whore: SO I CAN GET MUH LVL 50 CHAR DUH LYKE ZOMGZ!!!!11
XboxForumUser: Yeah right, more like boosting your gaymerscore.