Definition: Please see notes below.
Hamlet's father was in a state of sin when Claudius murdered him, thus he was in a 'gross' state, not purified by confession. He was "full of bread" because he was not in the midst of any religious practice, such as fasting. Shakespeare is referring to Ezekiel 16.49: "Behold, this was the iniquity of thy sister Sodom, pride, fulness of bread, and abundance of idleness..."
