I got nothin to say but I'm hoping you don't know this
ya know? I ain't gots nuthin tuh say, ya know? I jess be flappin ma lips, know what I'm sayin?
The phrase gangsters say (usually on MTV Cribs) when they show/tell you something, not even they understand.
(ON MTV CRIBS)
Gangster: I got the surround sound, the Mp3 hook ups, and the tv that comes out of the bed, ya Know what I'm sayin'?
Said as if one word, it means "Do you understand what I mean?" but during the peak of its use it ended up midway through many sentences and regressed into having no meaning whatsoever (i.e. similar to the Canadian "eh?").
Original meaning: "We're just chillin' down at Lawrence and Ellesmere, knowwhatimsayin?"
Peak use: "There's this cat, knowwhatimsayin, he brings three gats to the block party, knowwhatimsayin, and he's got beef with one crew, knowwhatimsayin, etc."