Make sure to read the Hot Joint entitled “The Reality Is… that breaks this down even further! Holla At Ya Boy!
1)Dull: adjective – to describe something as bein’ terrible, something that makes you sick with disgust because it’s so stupid to even think of.
2) Dun: noun – the person in question, dude, guy, etc. It’s whoever I’m talkin’ about and its non-gender specific.