n. A person who believes that United States president Barack Obama was not born in the United States, and is therefore ineligible to be president.
Other Forms
Last December, in dismissing the birth-certificate argument as a "canard," Gilbert wrote, "The 'birthers' are the new 'truthers.'" Soon, birther met its counterpart, deather — that is, someone who insists that health care reform will lead to "death panels" eager to pull the plug on "granny."
—Leslie Savan, “On Language: From Simple Noun to Handy Partisan Put-Down,” The New York Times, November 18, 2009
Some Republicans have shifted their strategy against the health care bill from fighting over the details to questioning the very constitutionality of mandatory health insurance. And a few have sympathized with the so-called birthers, who continue to challenge Obama's citizenship and legitimacy as president despite all evidence to the contrary.
—Susan Milligan, “Obama domestic agenda largely a one-party effort,” The Boston Globe, November 17, 2009
2008 (earliest)
Today is the day that all the Barack Obama birth certificate conspiracy theorists—or "birthers" as they're known in some circles—have been waiting for. Yes, at long last, it's Birth Certificate Day at the Supreme Court!
—Michael Kraskin, “Supreme Court Not Considering Obama's Birth Certificate Case,” Political Machine, December 05, 2008