At Christmas, Santatran didn't give him a gift, because he is a naughty Fakegee. This made Kleegee so mad. He tried to kill Santatran, but Santatran teleported away from him. (This is because when Santatran got revived by a gift, after being killed by Angreegee, he got the power to teleport, just like Weegee has.)
Kleegee got angry even more and ended up saying "What the heck!" because his dead brother was gone. Now is a member of The Anti-Weegee Alliance.