American Heritage Dictionary
(2)
Century Dictionary
GNU Webster's 1913
(1)
WordNet
(2)
Elsewhere on the web
Little wonder these RIA on Linux discussions make me feel icky, as we can dial in at least another two years of proprietary plug-ins dominating on open-source desktops.— ZDNET.com.au
The "what about polygamy" canard is simply a dodge for bigots to avoid expressing what they truly feel -- gays are icky, and letting them have the same license straights have, makes it seem OK to be that way.— BlueOregon
It's smooshy and icky, and when your bare foot sinks into it, you can't help but wonder if there's something lurking in there that might take a chunk out of your toe, and it makes you want to push off as quickly as you can so you can get back up to the surface, where you can breathe and also get back at those jokers who pushed you in.— News & Features from Minnesota Public Radio
Also a little icky was the preview showing bachelorette Stephanie's daughter brought in as a surprise for her next week.— Blog updates

American Heritage Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word several times a year.