Jonni means in slang: Jonni can be a male name. There are many girls who have this name. Jonni, the name of a girl, is beautiful, gorgeous, hot and ****. Jonni is difficult to please, as she doesn’t enjoy many people. Jonni has a very fashionable personality. Most guys think she’s at least cute. Jonni is a big, muscular woman with a great body. Jonni is a very nice woman if she’s in a positive mood. A Jonni can be a ***** when she is in a bad mood. A Jonni is a joy to be around. (in Slang Dictionary, added by Heather Warner)