Imagine I had 3 cups of coffee. 2 would have been ok, but 3 is too many. I want to be factual that I had too many, by exactly one. I want to say:
I had one too many cup of coffee.
But I feel like this sentence is a little to "proverbial" in the sense that "one too many" is an idiom.
According to this answer, it has a "negative connotation" and it's closely related to alcohol consumption.
I don't want to convey that at all. Is my sentence OK, or is there another way to say it?
Also, is there any difference in connotation or meaning with this sentence?
I had one cup of coffee too many.