Johnnia means in slang: Johnnia, a remarkable woman with amazing compassion for others, is an incredible person. Johnnia is an amazing woman and a great leader. She is worthy of love and compassion. But she won’t let you get mad at her. These are just a few of the things that make her an amazing young girl. So love her. T H E A N D: (in Slang Dictionary, added by Leonor Hernández)