"Meh? What does this mean?"
O.O God bless her, she's a really kind-hearted person, and was asking in complete honesty. The interweb elves must have missed a few neighborhoods, I guess. But it got me thinking for a moment: how do you qualitatively define something as broadly encompassing as 'meh?' It's like trying to explain the therapeutic benefits of bubble wrap popping or why this is so entertaining. Harder, really...
I guess with something like 'meh,' it'd be easier explaining what it is not. Basically, it's when something (including your mood) is not funny enough to laugh at, not sad enough to frown at, not crazy enough to shout out about, and not urgent enough to warrant getting up and doing something.
For example: imagine someone you are acquainted with lost something trivial. A quarter, let's say. And let's say, for argument's sake, that they have no internal monologue, no concept of cognitive relevancy and no social filter and blurt out to you that they have lost said quarter. What would you do? You probably wouldn't smile or laugh. Even considering this person is one step up from a complete stranger, that's still kind of rude. You probably wouldn't laugh internally either - it's just a quarter, after all. Same reason you wouldn't frown or be sad for his loss, at least not with any degree of sincerity. You likely won't call your best friend/spouse/mom and dad to let them know about this poor, strange schmuck loosing his two bits. Lastly, you're not likely to drop what you're doing (likely much more important than a quarter) to really scour for his missing coin. Oh sure, you might look around your feet for a few seconds, but then you'd probably shrug your shoulders, give him the obligatory "Wow, that sucks" to give that small, if not unenthusiastic, impression of sympathy and be on your way.
And I guess that's really the best definition of 'meh': the verbal equivalent to a shrug of the shoulders.
