Ready to wet the party up,
To “wet” is to “kill” (bleeding makes you wet); he wants to “wet” the party he’s at, just as his namesake made the fields of Austerlitz run with blood!
(Also, “wet the party up” is a pun on Prohibition-era use of the word “wet”, i.e. “I’m going to bring some moonshine to the party for people to drink”)
To help improve the meaning of these lyrics, visit “Hail Mary” by 2Pac (Ft. Outlawz) Lyrics and leave a comment on the lyrics box