Lil' Wayne is suggesting that girls join him and his entourage in the VIP section of the club, where they can afford to order a lot of champagne. They don't even care whether they drink it, or just let it pour all over the place like a shower.
"Grizzly" is the ebonics form of the word "grind." The Grizzlies are also an NBA team that Allen Iverson just recently joined. Red Cafe is making a play on the word "Grizzly" by saying that he has been on his grind and is not new to it.
The CADA is an activities program in california that gives kids an alternative to life on the streets. So I'm guessing it's like some sort of shout out to the place where he might have developed as an artist before he made it big.