I am sure we are talking about the same thing, and it ain't cheese. I think they are a very distinct horse. I could not eat one. This may be the connection to cheese.

http://en.wikipedia.org/wiki/Horse_meat

Here on this Canadian border often a mutt of a horse is referred to as a Canadian Chunk, this is not the Canadian Cheval, the original original horse stock of this area.

http://horses.suite101.com/article.cfm/morgan_horses_and_the_canadian_connection

I hear a grinder works well on old wood.

Tim