I'm still trying to find the relevance of Bill Cosby to MGS3, but perhaps the lack of it is what makes it so funny :)
I think that's the joke in its entirety.
remeber that black dude in the original MGS? The guy who gets shot and dies?
His aviator is merely "Its a prequeil I am back mother fuckers"!
You idiot, DJ! Sinbad the Sailor was never funny, you mean Sinbad the Blackguy!
....Whadya mean he knew that all along--impossible;---that would undermine his joke...
..WHADYA MEAN I have no sense of HUMOR! I'LL FUCKING RIP OUT YOUR TOE NAILS...
*Fight ensues*