Someone in another forum (could be Chinadaily, I am not sure) mentioned that this is a mistake coming from Kingsoft translation software. I don't know if that's true. I do know that kingsoft dictionary defines the "verb" use of "gender" as "having sex." (Check it out for yourself.)
Here is something for your interest: 中式英語收集及修改. http://www.********.com/dispbbs.asp?boardID=11&ID=10928
replace the banned word ******* by rain_lane (without the underscore.)
or use this re-direction post http://www3.sympatico.ca/d.stephen/rainpost.htm