Nina is an innocent name, mostly given to someone of Latin origins. However, as we have learned from our research, Nina is a slang that is not so nice in rap.
Nina is another slang for the 9mm pistol. Take note that many slangs in rap refer to guns and weapons due to the persistent themes of violence. Nina became slang for the 9mm because if you say “nine millimeters” fast enough, the first sounds become “Nina.” The slang may be used as follows:
“I got a Nina in the trunk for self-defense.”
“The intruder had a Nina with him. It’s a good thing that the police worked so fast.”