humble pie

Etymology
The expression derives from umble pie, the original name of the offal meat pie, considered inferior food. In medieval times the pie was often served to lower-class people. Although "umbles" and the modern word "humble" are etymologically unrelated, each word has appeared both with and without the initial "h" after the Middle Ages until the 19th century.

Noun

 * 1)  A pie made from the offal of deer or hog.
 * 2)  Humility, being humble.