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2.
A nutjob conspiracy theorist who believes President Barack Obama was not born in the United States.
Dude 1: "The birfers are so desperate to prove that Obama wasn't born American that they resort to forging birth certificates."

Dude 2: "Yeah. Birfers are non-stop comedy."
by Darth Chaos August 12, 2009
 
1.
Crazy people who think Barack Obama was not born in Hawaii, USA. They Claim his Birth Certificate (COLB) is a fake, he was born in Kenya, making him ineligible to be President.
Groups that fall under Birfers: PUMA, Fringe Right-wing Blogs, Conspiracy people, Bigots, Sore Losers and mentally unstable.
by Krownick January 28, 2009