Eeyore refers to a
fictional character from the
book series[?] and
cartoon Winnie the Pooh. He is a gloomy old
donkey who happens to be a friend of Winnie the Pooh. He is hardly ever happy and when he is he's still sardonic and a bit cynical. His grumpiness might be atrributed to the fact that his tail is affixed to his behind using a
pushpin[?].
In merchandise by the Walt Disney Company, Eeyore always has an uncharacteristic smile.