American Heritage Dictionary
(2)
Century Dictionary
(4)
GNU Webster's 1913
(1)
WordNet
Elsewhere on the web
That snow draws thousands to the Hayward-Cable area, where this year the good snow has registrations for the American Birkebeiner, www. birkie.com, running ahead of the expected 7,000 racers.— Madison.com - top
While I may be a granola eating birkie-wearing tree hugger, Harper is a neo-con who lives and dies by the market.— Planet Atheism
A lord, no doubt, may be a "birkie" and a "coof," but may not a ploughman be so too?— Robert Burns
Milk 'll dae fine for yon birkie: he micht be gled tae get onything, sorning on a respectable manse every ither week You will pardon our humble provision"--this is how the Rabbi prepared Carmichael; "we have taken my worthy Abigail unawares, and she cannot do for us what in other circumstances would be her desire.— Kate Carnegie and Those Ministers
Milk'll dae fine for yon birkie: he micht be gled tae get onything, sorning on a respectable manse every ither week You will pardon our humble provision"--this is how the Rabbi prepared Carmichael; "we have taken my worthy Abigail unawares, and she cannot do for us what in other circumstances would be her desire.— Rabbi Saunderson

American Heritage Dictionary (1)
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 about once a year.