I'm an American living in California. I was recently watching a C-SPAN broadcast of a British Parliamentary debate about Mr. Trump (I assumed it's Parliament). A lot of men and women with tousled hair alike. (I kinda like that more than the slick haircuts in Washington.) Anyway, I was kinda fascinated with people saying "Hear, hear." More with HOW they were saying it than why they were saying it -- although both were quite new to me. It seemed like there was a nasally intonation and a pronunciation similar to "beer" and "pure" at the same time. Almost like: "hee-yur hee-yur." It sounded very strange to me -- a little cutesy and affected. Is this a real thing that I noticed, or does someone in Parliament have a speech impediment? Is there a history or origin to pronouncing the phrase that way?
EDIT: I found the video and re-watched some of it.
An example of what I'm talking about is around 41:07. They're kinda scattered all over the place, sometimes more than one person saying "hear hear" with that accent at the same time. But I realize now that it's a dialect that only a handful of people in the room seem to have.