Describe the avi above you... but poorly.
For best results, keep responses to just a few words/one phrase.
Example:
Player 2: *describes the avi above them, posting while using this as their avi:*
Player 3: If a lolcat meme went to a rave
*posts while using this avi:*
Player 4: Ska band lead singer who lost his pants
and then player 5 would summarize player 4's current avi poorly, and so on