I also think it's BS, but was curious. I've came across oppositional defiant on google but I think it was def "confrontational". Googling with quote marks revealed some vague references to it in relation to adhd (which I know I do have). The annoying thing is that it does sound like BS, and knowing I do have adhd and high-functioning autism, I hate the idea of a BS diagnosis making people question my legitimate ones... At the same time, for a long time I argued against being diagnosed with tourettes, but in retrospect I don't think all of my tics can be put down to Autism.