Maybe it's been around longer, but I first heard somebody say, "No, yeah" only several years back. I thought it was peculiar to that individual, but no: I have heard it many times since, including by somebody whose surname was, perhaps serendipitously, Noyes. Does anybody know the history of this odd phrase? Is it new, or just relatively new to me? And does it even make sense? Answer 'Yeah. No.' in the sense of 'I think so—oops, I was wrong!' Use of "Yeah. No." with a consistent intonation but with the two expressions pointing toward diametrically opposed conclusions (usually with comedic undertones) is probably fairly recent, at least as a popular trope in English. This is the usage that appears in Tallulah Darling, My Ex from Hell (the Blooming Goddess Trilogy Book One) (2013): Their fie simply bounced harmlessly off the air above the fence. I really was in a giant protective shield. I smiled thinly. My turn. I figured that since I had the up...