Ayye bae wat u mean doe
Apples to oranges, that shit don't make no sense. Why can't fruit be compared?
"A comparison of apples and oranges occurs when two items or groups of items are compared that cannot be practically compared. The idiom, comparing apples and oranges, refers to the apparent differences between items which are popularly thought to be incomparable or incommensurable, such as apples and oranges."
Basically, it is saying something is relevant but entirely different at the same time, ie falling from completely different trees but still remaining fruit. It is a phrase most people use in place of "Agree to disagree" though.