From Rap Dictionary
- Something that’s really good, a must have or highly talked about item. i.e. that song is hot
- Something that has been stolen. "Is that car hot?"
- Something that is extremely good looking or fast. "That car is hot!"
- Something extremly trendy or in style. "Yo, those shoes are HOT"
- Someone who cooperates with police or d.a. "Dont talk to that dude, I heard he's HOT"