My son is misbehaving terrible, is it time for a ?

My son is six years old and the last couple of days his behaivor has been terrible. The backtalking and lying has been really bad. He just flat out disobeys me and his mother. I told him if he did not straighten up that we were going to have to take a trip to the bedroom for a . Usually just the threat of a ing will stop it, but not today. He just will not listen, we have done timeout and taken away his game and he will just not stop misbehaving. I hate to do it, but I think we may have to take that trip upstairs. I hate , but it does work. When everything has failed (like in this case) should he get a ?