You gotta love Flex's growl ad-libs.
Honestly, I haven't heard anybody this aggressive on the microphone since Canibus. And quite frankly, Joell seems to be much more stable than 'Bis ever was, especially before he went to the Army. Furthermore, 'Bis never really had a sense of humor, so he would never come up with something as silly and fun-loving as "YAOWA!"
I think the most telling aspect of this clip, however, is Joell's message at the end.
"From here on out, let's start rhyming again New York...Rhyme...Ya'll need to rhyme from here on out."
I hope those emcees in question heard this. This is what rhyming sounds like.