Bart and Lisa try to take a picture of some dogs playing poker. This is a reference to the Dogs Playing Poker oil paintings.
When Barney said Homer takes 6 silver bullets for me, this could be a reference to Coors Light and their Silver Bullet marketing campaign.
This episode takes place shortly after April 20th, because Homer mentions that Barney's birthday is April 20th in Viva Ned Flanders. This episode also aired in that month.
The last time Moe used voodoo on Barney to get him to drink was in The Joy of Sect.
This is one of eleven episodes where the Teletubbies make an appearance.
Milhouse's old blanket that Luanne Van Houten tosses into the trash appears to be a My Little Pony blanket.
When homer finds the tiki idol he says, "Get out of my dreams and get into my car", he is referencing the song by Billy Ocean that has the same tital.
The number of chairs in the bar change from four chairs (when Moe wants Homer to be the new Barney) to three (when Homer is forced to dance).
In this episode, Barney lives above Moe's Tavern, but past episodes show that Moe's Tavern doesn't have apartments above it and that Barney lives in an apartment building located near the local prison.