Ness comes from the Pk dictionary of greatness. It Stems from his personal vocabulary. It is in reference to the male sexual organ some say kizzdogg created, but it was Pk
Yo I got a Sick Ness
yo ima go beat mah ness
i saw his ness
stop with your silly ness
A group of issues that are too complicated to explain briefly. When this word is used it is understood by friends that some events happened that are best left unexplained, or at least explained at a later date.
Ahh...that was some ness last night.
OR
(perhaps after seeing/hearing somethingimpressive) Man! That's some ness right there!