Nine is just a number, isn’t it? You might think that but the term is slang for something in rap.
Guns are a big part of rap since within its roots are themes of protest against violence and reality. That is why many slang words refer to guns. When you say “nine,” you are referencing the 9mm handgun. It comes from the size of the ammunition and its origin is observed with several gun slangs in rap. Follow our examples for less confusion:
“I got some 9 at home. It is a vintage.”
“I heard Tupac got shot with a Nine. I don’t know if it’s true.”