And sip the Cris' and get pissy-pissy

from Jay Z – Hard Knock Life (Ghetto Anthem) Lyrics on Rap Genius

Meaning

Crist' sipper, six dipper, wrist glitter nigga!

Cristal champagne, which Jay would later disparage saying that the company had made racist statements, was one of Jay’s favorite drinks.

Alcohol is a diuretic (it inhibits the re-absorption of water in the kidneys), and as a result you have to pee more frequently, that’s why Jay got pissy-pissy:

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