What is an un equivocal mcmurrays?

It seems like you're asking about "unequivocal McMurrays." This phrase is a bit unusual and doesn't have a standard meaning. It's possible you're misremembering or misspelling a term.

To help me understand what you're looking for, could you provide some more context? For example:

* Where did you hear this phrase? Was it in a book, a movie, a conversation?

* What is the topic of your question? Are you looking for a definition, a historical figure, or something else entirely?

Once I have more information, I can try to give you a more relevant answer.