Pizza, lobster, whiskey, mayonnaise or maybe even butter? What disgusting or odd flavor would you choose in your protein shake?

I had a fun discussion with a friend of mine way back where we talked about various odd (and disgusting) flavors that we'd try out. So, it's time for YOU to add your flavor to the discussion. Simply reply to this post with the most odd/weird/disgusting flavor that you WOULD try (if it ever was marketed as a protein powder). I'll gather up the replies and add a poll later so that we can crown the number one odd flavor!
So, wait no longer! Make yourself heard and add your odd flavor to the upcoming poll!
UPDATE: Voting is over. Find out who won
here!