In this episode, Cookie is arguing with Jamal and says "I don't trust that damn fake Clair Huxtable" when referring to Angelo's mother, Diana Dubois. Phylicia Rashad, the actress who plays Diana Dubois, is in fact the actress who played Clair Huxtable in The Cosby Show.
When Snoop Dogg mentions "...that thing that happened in 1996." he is referring to the drive by shooting of Tupac Shakur.