Drainpipe

• 1 oz Bailey's irish cream
• 1 oz Green Curacao
• Fill with Coca-Cola

Pour Bailey's and Curacao in a glass, stir. Add Coca-Cola slowly. No ice, serve with a straw. Blue Curacao may be used if you are out of green.

If this excellent database had a category called disgusting drinks I guess that this drink would appear there, but it taste better than it looks.