Someone who is so tard, and ghey that you cant stand it any more and call them a gheytard. It is no way offensive to Homosexuals in no way, and its in no way related to Mentally Challenged People.
Nick: HANNAH MONTANA IS A GHEYTARD!!!
ITS NOT FUNNY
Nick:It doesnt mean anything bad.
Shanti: Oh ok, I guess you are super duper awesome, *whisper* I love you.