2. Same as above, except done specifically by inmates in or employees of a jail or related correctional facility to use the abundance of time.
3. Shooting the breeze.
Person 2: Naw, I was just smiling because you taught me a new word. It must be in the Webster's Unabridged Correctional Dictionary
Person 1: Oh, you like to be sarcastic when you be jailin.
I didn't really care about what we were talking about. I was just jailin.