birtherism /ˈbɝθɚˌɪz(ə)m/ noun1 •(US, disapproving) A movement in the United States of America that doubts or denies that the 44th President, Barack Obama, is a natural-born U.S. citizen, thus implying that he is ineligible to be President.But Obama's plunge into the fever swamp of birtherism was just the latest detour on what had already been a long, strange trip—with many miles still to go. — 2013
