Who is a mongrow?

Answer 1

The definition of a mongrow is that it is a word used to insult someone so there is not a group of people who would be considered mongrow's. You would call someone a mongrow after they have done something dumb.

Answer 2

There is no widely known figure or term called a "mongrow." It could be a possibly misspelled or misheard word. Can you provide more context or clarify the question?