It strikes me like those rooms with ping pong balls on the mouse traps.
One comes flying in somewhat innocently, sends a couple more into motion, then two seconds later, its a cacophonous mess with ping pong balls flying everywhere.
Every other thread I’ve opened up the past few days has had a “not so much” in it.
It’s already too late not to be deemed annoying, but we need not exacerbate it. Try to express yourself without it.
For me, it’s “prolly”. God, I hate hate hate that word. This other? Not so much.
Liberal, aren’t you worried that people aren’t going to like you if you provoke them like that?
Hah - I’m cracking myself up here! 
You know, ten years ago I don’t think I ever ran into that phrase. How did that come to be used so much?
I first encountered it in the sitcom “Mad About You”, in which the two leads said it to each other pretty much constantly. I think Paul Reiser was the popularizer, if not the inventor, of this term.
I applaud your truthiness.
All right. Well, here’s a decent article on it from Columbia’s School of Journalism:
http://jscms.jrn.columbia.edu/cns/2006-10-31/weiss-catchphrasedujour/
Prolly shouldn’t mention how much “le sigh” irritates me, as a Francophone of middling ability. 
Did it just blast onto the SDMB scene, or am I crazy. . .or just randomly selecting threads today in which people use it.
Probably via Jon Stewart. He’s a popular figger hereabouts.
Man, I like that ping pong ball thing. It reminds me of what happens when stupid people do stupid things. Shit goes wrong in a hot ass hurry. All it takes is one stupid move.I say the not so much thing sometimes but If it pisses you guys off I’ll try to tone it down some. It don’t pay to piss off “The Dope”
What! Have you no fondness for Mr. LePew?
I get tired of the same old words so I’m glad when a useful phrase like ‘not so much’ turns up.
Can we get some cites, please? I haven’t noticed this, and even after reading Liberal’s linked article, I don’t understand where the annoying part comes in. Maybe if I saw a few examples, it would help.
“Meh” is the one that makes me want to strangle puppies.
And “y’know” written as “yanno.”
I’ve never seen that one. I would have thought it’s a New Age pianist.
You’re glad of a cliche because you get tired of using the same old words?
What’s that like?
Any phrase that reaches the American psyche via Buffy is one [del]I approve of[/del] of which I approve.
But, but, but, your thread title had TWO “not so much” in it! Are you sure you actually hate it and not just pretending to hate it in order to get all the froamy-froth grammar goombahs in a broohaha? 
Another one is ‘the internets’. Makes you sound like such a geek.
If the shoe fits…