An Irish man or woman who has defecated in his/her pants. Also: When someone is intoxicated by alcohol to the point they poo their pants. Other similarities include; Poo Pants McDougal/McCallister/McGoo and most recently, McCain
Slang term for someone who consistently has very large and smelly boul movements. These people are known for clogging toilets and clearing houses.
Warning: If you get around someone like this and they so much as mention the word restroom, you better run and hope they aren't in your house!
Jan is a Johnny Poo Poo pants because she has broke 3 toilets over the past 6 months and often causes people to vomit if they are within 200 yards of a restroom she has used.