Thanks, c_b. I'm not familiar with the film in question. But I share your liking for Greg Kinnear, on the basis of both his performance in the movie with Jack Nicholson (As Good as it Gets?) and in Little Miss Sunshine.
Sionnach, I hazard a guess that it refers to his star turn in the film "Auto Focus." I think it should be called a Crane, then, after the character he played, Bob Crane, rather than a Kinnear.
But I could be completely off-base. After clicking a link on VO's linked page, it looks like it was used in one person's blog, who had a (sort of) personal encounter with Kinnear and coined the term for that experience, rather than for anything Kinnear himself did.
I still would call it a Crane. Mostly because I like Greg Kinnear...
I followed various links, but am still unclear as to the origin of the term. What specific incident is being referred to? There is obviously some particular motivating event - apparently so egregious we are supposed to recognize it immediately. Is it something he did as a private person. Or as part of some role he was playing?
enquiring (and apparently terminally out-of-the-loop) minds need to know