Sorry Chiilaa, I think it is more of an American term, but it describes a broken blue/black coat in a Boder Collie or an Aus. Shepherd dog (or red/brown merle.)
Like this- blue merle - Google Search
And many people use the term "merle" (however correct or not) to describe horse eyes that are part one color (like blue) and part another color (amber or brown) but within the same eye.
I know there are some other common names for this, but for the life of me, I couldn't think of any.