A word used by those of an immature disposition to attempt to cheer people up when infact all there doing is winding them up.
Cerb: I know a song that'll get on your nerves......
Felteh: Stfu Cerb
Cerb: Its allgood!!!
* Felteh removes Cerbs head using a small nose hair trimmer and proceeds to weld it to the end of a toothpick *