It never really dawned on me that there are a lot of folks who don't know the meaning of the word meh. I first heard it while I was still teaching IT and heard it used by the younglings. The word just felt so right and seemed so perfect in typical context, I adopted it instantly. But one time I used it on Darlene, she looked at me like I was from Mars.
So for those of you who have yet to come across this totally appropriate word, or don't know what it means, I direct you to this article. Excerpt:
Meh means rubbish. It means boring. It means not worth the effort, who cares, so-so, whatever. It is the all-purpose dismissive shrug of the blogger and messageboarder. And it is ubiquitous.