A name given to a person who has ears that stick out the side (at a greater angle than is usual) like little wings on their head. Sort of reminiscent of those little nuts that are easy to screw because of their wing-like attatchments, also called "wing nuts".
This is how it is used by some people in New Zealand anyway.
(noun) A person appearing to be moderately to severely crazy, disoriented, majobling, see Majoble, jumbled and more often than not, a total mess. A wingnut is a constant source of entertainment to those surrounding it and can easily be found in any type of setting or venue. Example: grocery stores, sporting events, cross-walks, public transportation, school, work…you may even have one in your house.
someone who is slightly off centered ,behaves in a strange manner not the norm .. usually good for a laff.. the type of friend who tries to be helpful but always fucks things up
n. An outspoken, irrational person with deeply-held, nominally conservative, political views. A person who chooses on principle to be flagrantly ignorant. A "right-wing nut".