The Naked Finger
When a married person does not wear his or her wedding ring because he or she is angry at his or her spouse. Can be used as a noun or a verb.
Mary was mad at her husband Bill for refusing to make dinner, so she gave him the naked finger.
Finger-Naked
When you're so used to wearing rings, that not wearing them feels weird
I haven't worn my rings in weeks and feel Finger-Naked.