Definitions
1.nounA nut with wing-like projections to provide leverage in turning with thumb and forefinger.
2.nounOne who advocates extreme measures or changes, especially if they hold or are perceived to hold far-right viewpoints; a radical or reactionary.
3.nounSomeone with large, protruding ears.
4.nounA deciduous tree of the genus Pterocarya native to Asia.
5.nounSomeone with crazy or extreme political views (especially extreme conservative views).
6.noun(North American itinerant and street populations) A mentally ill homeless person.
7.nounSomeone perceived as odd, eccentric, and/or extreme.
8.noun(rural US) A member of the air force (in a town that hosts a USAF installation).