American Heritage Dictionary
(3)
Century Dictionary
(2)
GNU Webster's 1913
(1)
WordNet
(3)
Elsewhere on the web
One successful poser was a gym rat from Brooklyn who called himself Chris Paciello.— Alanat News
But because the poser is Miley Cyrus, and because Asian Americans love to get mad at things, someone somewhere had to demand an apology.— Chinalyst - China blogs in English
For the poser, you need to help them be more realistic.— studentlinc
Why is this "poser" allowed into what is supposed to be a "Conservative" publication?— Latest Articles
I feel a little like a poser when I say I like their movies.— Saturday Morning Movie Club

Century 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.