That is only possible through the death of Christ, the death to which we are united. Yet, we still live and struggle with the flesh. Paul is speaking of the progressive character of sanctification. Nor should there be obscenity, foolish talk or coarse joking, which are out of place, but rather thanksgiving. In both the verses in Ephesians and here in Colossians, Paul calls these vices idolatry.
Idolatry is the honor, adoration, devotion to false gods.
But here Paul calls these sins, these vices idolatry. These vices, then, are like idols. An idol can be carried around, hidden from view, and taken out in private to be honored, and fed with sacrifices of sin. It can also be displayed and shared with others. What in your life is a secret sin that you carry around.