“ə(r) noun
( -s )
Etymology: hundred-percent (American) + -er
: a thoroughgoing, unqualified, and often blatant nationalist ; especially : a self-proclaimed opponent of foreign alliances, influences, and interests
the vociferous nationalism of the hundred-percenters … is always most eloquent when it is about to be most rowdy — Walter Lippmann
could never be a hundred-percenter as long as he did not possess an American birth certificate — American Mercury