Humour is something that occurs when you substitute fiction for fact: for example, documenthairy's are very humoreish, as are non-fiction books such as World Atlases and Where's Waldo? Humour is a versatile thing, and can adapt to the most enjoyable circumstances to make them as boring as possible. This is the explanation for Mr. Blobby.
Unbeknownst to most flamingos, the humour is a bone in your lung that is used to support it, but more often penetrate it and kill the user. This can be relatively inconvenient, especially if you don't have a lung rental shop nearby.