split something down the middle

split (something) down the middle

To divide or share the cost of something exactly equally. While I appreciate the offer and the sentiment, I insist that we split the bill down the middle—I don't like someone paying for me on a first date.
See also: down, middle, split

split something down the ˈmiddle

divide people into two groups, who disagree: The local Conservative party is split down the middle on the matter of taxation.
See also: down, middle, something, split