The words Hear Hear are often used in political circles to express agreement or endorsement of something being said. Originally, any disagreement with a speaker, either in the House of Commons or of Lords, would be suggested by loud humming in an attempt to drown out the speech being made. Then, members in favour of the speaker would call for those humming to listen by shouting “Hear him, hear him”. This phrase has evolved over the years to become the one we use today.